Sorry for the late answer, life can be unfair sometimes...
So all work fine, no position tracking loss, if I use my normal shorcut and go to the View menu, using the 3D choice. I was connected using Meta Link and Cable, this time, not with Virtual Desktop. It work for both OpenVR and Oculus Mode, and I was able to crank Supersampling to 200%. I will prefer a shortcut parameter but that's not a big deal. Both openvr.log and riftvr.log are filled. I hope it's OK to copy paste them here as they are not that big:
-------- Openvr.log
LFSOpenVR Apr 10 2020
ProductName: Meta Quest 3
Manufacturer: Oculus
LFSVR_QueryHMD
Recommended RT size: 6656 x 3644
Left eye:
GetProjectionRaw___: Left -1.376 Right 0.839 Top -1.428 Bottom 0.966
GetProjectionMatrix: Left -1.376 Right 0.839 Top -1.428 Bottom 0.966
GetEyeToHeadTransform:
1.000 0.000 0.000 -0.034
0.000 1.000 0.000 0.000
0.000 0.000 1.000 0.000
Right eye:
GetProjectionRaw___: Left -0.839 Right 1.376 Top -1.428 Bottom 0.966
GetProjectionMatrix: Left -0.839 Right 1.376 Top -1.428 Bottom 0.966
GetEyeToHeadTransform:
1.000 0.000 0.000 0.034
0.000 1.000 0.000 0.000
0.000 0.000 1.000 0.000
IPD: 0.067
LFSVR_AcceptSharedTexture
RT size: 6656 x 3644 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 6688 x 3662 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 6724 x 3681 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 6756 x 3699 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 6788 x 3716 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 6820 x 3734 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 6852 x 3751 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 6884 x 3769 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 6916 x 3786 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 6948 x 3804 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 6980 x 3821 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7012 x 3839 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7044 x 3856 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7076 x 3874 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7108 x 3891 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7136 x 3907 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7168 x 3924 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7200 x 3942 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7232 x 3959 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7260 x 3975 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7292 x 3992 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7320 x 4008 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7352 x 4025 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7380 x 4040 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7412 x 4058 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 7440 x 4073 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 9460 x 5179 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 9436 x 5166 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_AcceptSharedTexture
RT size: 9412 x 5153 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_Close
-------- Riftvr.log
LFSRiftVR Apr 10 2020
ProductName: Oculus Rift CV1
Manufacturer: Oculus VR
LFSVR_QueryHMD
Recommended RT size: 5440 x 2976
Left eye:
UpTan 0.966 DownTan 1.428 LeftTan 1.376 RightTan 0.839
Right eye:
UpTan 0.966 DownTan 1.428 LeftTan 0.839 RightTan 1.376
IPD: 0.067
LFSVR_AcceptSharedTexture
RT size: 5440 x 2976 / format: DXGI_FORMAT_B8G8R8A8_UNORM
LFSVR_Close
----------
Edit: and an additionnal deb.log if that can help:
---------- deb.log
Mar 12 11:38:04 LFS : 0.7F
Mar 12 11:38:04 timer resolution 1 ms
Mar 12 11:38:04 read config
Mar 12 11:38:04 get command line
Mar 12 11:38:04 preinit d3d
Mar 12 11:38:04 started Direct3D 9Ex
Mar 12 11:38:04 number of adapters : 1
Mar 12 11:38:04 adapter 0 - valid modes : 62
Mar 12 11:38:04 load font
Mar 12 11:38:04 -----
Mar 12 11:38:04 Init: SetPresentParams (1)
Mar 12 11:38:04 Init: CreateDevice
Mar 12 11:38:05 Init: GetRenderTarget
Mar 12 11:38:05 Init: GetDepthStencilSurface
Mar 12 11:38:05 Init: return
Mar 12 11:38:05 max texture size 16384
Mar 12 11:38:05 can do shadows
Mar 12 11:38:05 can do multi tex
Mar 12 11:38:05 load language
Mar 12 11:38:05 initialisations
Mar 12 11:38:05 tables
Mar 12 11:38:05 human system
Mar 12 11:38:05 helmet
Mar 12 11:38:05 controllers
Mar 12 11:38:05 load objects
Mar 12 11:38:05 start intro
Mar 12 11:38:05 end of initialisation
Mar 12 11:38:05 Controller 1 (Thrustmaster T500 RS Racing wheel) :
Mar 12 11:38:05 Added 5 axes
Mar 12 11:38:05 Controller 2 (T500 RS Gear Shift) :
Mar 12 11:38:05 Added 2 axes
Mar 12 11:38:06 init sound
Mar 12 11:38:21 open VR
Mar 12 11:38:47 Next LOD
Mar 12 11:38:47 Next LOD
Mar 12 11:38:47 Next LOD
Mar 12 11:38:47 Meshes : 40
Mar 12 11:42:19 open VR
Mar 12 11:44:44 shutting down
Mar 12 11:44:44 free objects
Mar 12 11:44:44 free languages
Mar 12 11:44:44 free controllers
Mar 12 11:44:44 clear light map
Mar 12 11:44:44 close sound
Mar 12 11:44:44 close VR
Mar 12 11:44:44 free humans
Mar 12 11:44:44 free font
Mar 12 11:44:44 free helmet
Mar 12 11:44:44 kill graphics
Mar 12 11:44:44 save controls
Mar 12 11:44:44 save views
Mar 12 11:44:44 save config
Mar 12 11:44:44 free mouse
Mar 12 11:44:44 EXIT
----------
I need to redo a test using Virtual Desktop, as it have several options I can tests, as it's a way to launch VR games a lot of persons are using IMHO. Far more easy.