When I was last looking for a fully remote job, a lot of companies gave you a “technology allowance” every few years where they give you money to buy a computer/laptop. You could buy whatever you wanted but you had that fixed allowance. The computer belonged to you and you connected to their virtual desktops for work.
Honestly, I see more companies going in this direction. My work laptop has an i7 and 16GB of RAM. All I do is use Chrome.