I hope my first help post fits as I try.
I can’t watch movies/videos/series in worlds and I need to keep the untrusted URLS disabled. In for example LSMedia I can listen to music but can only ever watch maximum one video or similar. If I try to change the video afterwards or just change the world, the picture freezes. According to others, I can still move normally and even talk, but my image is frozen and it helps only the restart of VRChat…
This is of course a pity when I want to watch a few movies with others for example…
The problem I owned earlier with my Rift S but also now with my Index.
Drivers and updates are all up to date.
GPU is the RTX3060 with a Ryzen 7 5800X and 32Gig RAM.
A reinstall with handy delete remnants of VRChat has also so not helped so far.
Another friend of mine also has this problem, but apparently only since the EAC update.
I hope someone knows the solution.