I use a Laptop for most work, I like to be nomadic and don't like to do my business in one place. I use an ASUS Zenbook Duo 14-inch since I like to have two screens on my laptop. It works perfectly with Fedora.
I have an old Lenovo ThinkPad X200 with the boot firmware replaced with Libreboot and no OS installed. I use a TAILS USB stick on that only, mainly for when using Tor.
I use a GrapheneOS Pixel 6a with no SIM and airplane mode always on. If I need cellular network access for whatever reason I use a portable 4G router, some of them can receive SMS' by a display on them.
I use a couple spare mini PC's to run a homelab, I self-host Tor onion service mirrors of things on them, or as a NAS.
I have a generic desktop I use for playing video games or anything resource-intensive but I don't use it too often.
homelab the best setup, got some old hardware from mining + proxmox and you have your little datacenter and no one will stop ya. OK, well, maybe your ISP :-)
I might sell my Desktop and buy a powerful Tablet Hybrid (like Microsoft Surface 9) that i can plug to an external monitor and mouse & keyboard. Desktop PCs take way to much space.