[mention|wDn9Vzy4HLtz+BAisRBsXQ==] do you plan to update the URP shaders to their full potential? Because XR for built-in is deprecated since 2019.3. and runs only on URP and HDRP. And Unity has in every 2019.x version delta-time issues (Forum thread).
Every moving object jitters/stutters as hell. of course more noticeable on VR. The closer the object the more you see it jumping instead of moving smoothly. In my opinion the whole 2019 series is useless for any kind of production, I tested every available 2019.x version except the betas, on standalone, standalone-VR and mobile VR. Unity 2020.2 has fixed that for at least standalone D3D11/12, and other platforms. (ETA for mobile XR > 2021). That’s why I am on unity 2020.
And going back to a 2018 version is no longer possible due to some other changes and those from important 3rd party developers.
Sorry for the long explanation, just thought it might be helpful. Also, I would like to start making the 1st test/showreel with a mini scape-city in URP for mobile VR/Oculus Quest 2. I thought by using a small number of buildings the Q2 should be able to render it at a very good speed. Given that Facebook announced a new Quest headset that is in development, this gets even more interesting.