I hear you.If this was a few years ago, I'd definitely recommend a self-assembled PC for too many reasons to list. Now, the video card market is so crazy that you're overpaying for even basic performance packages. Software I use takes years before it's released on Apple so I'm stuck in the PC world but, if you're just looking to edit video, Apple is the best deal right now.
Look at a used 24" M1 iMac or M1-based Mac Mini. I've seen used versions on ebay from $400-$500. Both have similar performance so just buy whichever is the best deal at the time (assuming you have a monitor, keyboard, etc).
I was a near Mac evangelist for the early years starting around 1988. However my photo studio ended up ditching Apple not long after they went from OS9 to OSX. Printer drivers weren’t available for over 2 years. Our go-to DTP QuarkXpress never did survive the switch. We found that we could outfit the studio with PC’s at 1/3 the cost and ultimately discovered their useful life to be twice that of Macs. IMO apple products just come with too many limitations at a premium price. JMO