Ehhhhh it kinda has enough power.

I have an 8GB Pi5 we use as a desktop in our living room. PiOS is sluggish to navigate, even though it’s an 8GB pi5 running off an NVMe SSD instead of a memory card. It’s just there to stream YT and Twitch and whatnot though, and it streams at 60FPS no problem once you’ve got the stream pulled up.

I wouldn’t recommend it as a desktop PC though, as navigating the OS and loading programs is not a great experience.