Probably because it's very niche. Talking to many friends, and an increasing number of posts on various console subreddits, there's lots of comments from PC gamers that embraced the console life due to it's simplicity. This has increased since the PS5 Pro released - "Close to PC-level graphics, without the PC-level costs and mucking around with settings"
There is a certain appeal to this for many people that hacking it to run your own OS isn't really sought after.
Kind of funny because most games on the PS5 Pro have performance tuning settings. It's not as comprehensive as you'd find on a PC game, but it's clear the console audience is also wanting to tweak how their game runs. And, for what it's worth, pretty much every new PC game has an auto-configuration that customizes the settings for the hardware on install. So you don't have to ever go into settings, so long as you're happy with the play experience the developer decided you should have.
That's true, but even the settings you can tweak are essentially a curated set to choose between higher res vs lower fps, or vice versa.
I think the other aspect is that when gaming on console, you know the game was optimized for a certain hardware config - not having to worry about whether the graphics card you bought a few years ago will net you the best experience on a recently released game.
It's just one less thing to worry about for many people, including myself.