Btw, when i got the issue, i recall i saw a reimport of things like what happens when first create the project, so my guess is that:
- Unity creates a new project though the hub
- Sets a flag to do the template import on first load and then this flag should be reset so that import not happen again
- Project loads BUT the flag of clean object generation is not reset for whatever reason, this is where Unity developers input is important, so we can understand the issue
- On project exit and reload and since the flag is still there, the project re-imports the template, apparently before template reimport there must be some check if the Assets has anything and a wipe out action if it does.
So is rather obvious that the template insertion action is happening again and obvious that there should be a way for any project to tell when this action has already happened. A Unity developer that knows this system could solve this a a few minutes, the problem is to find this developer 
This should be a really simple thing to resolve if someone actually cares for it.
The Swap chain issue on the other hand is exponentially more severe and harder to resolve and some new bug in graphics Unity introduced in 2020 and above, so this one is a show stopper far more and need resolve the soonest as well. This bug renders the engine completely unreliable and is the no1 thing to resolve imo by miles.
Imagine making a game and all is fine (like i have never seen a crash on my 1050GTX GPU) and suddenly realize all 20xx and 30xx Nvidia GPU crash your game without any way to resolve it or handle it.
This is a true material of nightmares.
Constant Crashes - Failed to present D3D11 swapchain due to device removed. page-4
Failed to present D3D11 swapchain...
Reddit - Dive into anything
Unity failed to present D3D11 swapchain due to device reset/removed - Stack Overflow
Reddit - Dive into anything
Reddit - Dive into anything
Unity Issue Tracker - Crash with GraphicsBuffer.CopyCount() on DX11, with intel integrated graphics
D3D11 SwapChain Error Fix - Gaia & Gaia Pro (All Versions) - Canopy - Procedural Worlds
https://unity928.rssing.com/chan-30531769/article975366.html
https://github.com/Unity-Technologies/BoatAttack/issues/172