I'm in a similar boat. I don't want a media center, I just want to be able to easily stream video from my PC with the highest picture quality (no unnecessary transcoding). Luckily I found an app[0] that does just that and does it well. Paid, but you can see the quality (only recurring issue is that the remote control app keeps disconnecting from my PC after a while).

[0]https://airflow.app/