I'm having the same problem with IINA/VLC (and infuse) freezing issues, using 2018 Intel Mac Mini
However, if I attach eGPU then all works fine, no problems... but using the integrated graphics (disconnecting eGPU) freezing happens,
2018 mac mini has always had bad internal graphics from day one, Apple really could have done better... but never any freezing using videos, just slower choppy UI. Feeling like Ventura is going to be a bad experience on older 2018 mac mini, stage manager works but animations very choppy,
Apple have updated bootcamp recently, so still supporting intel, hopefully this can be improved before release