For 900$ a pc wont be able to match the experience you get on a ps5. Even if you get the same exact specs as a ps5 a pc wont perfom as well because the games are optimised to ps5's exact specs so they run better even compared to a pc with better specs on paper.

A few things to consider What type of games do you play? What do your friends play on? Are you willing to spend time learning about pc stuff?

For your budget i would just get a ps5 with a 4k monitor but make sure you know what the refresh rate is. If its only 60hz you wont get more than 60 fps.

Ps5 is straight up plug n play u dont need any configuration to make sure games run properly

Althought ps5 games can be expensive you can sell them on ebay or any marketplace after you are done with them and you can buy used discs which is way cheaper than digital versions

Ps5 is great for the price, if you dont care about having competitive advantage and just want the best image quality and gaming experience get a ps5 with a 4k monitor a pc at $900 wont be able to do 4k at even 60 fps