Eg: pick corporate model laptops from major vendors like Dell. Something whose hardware has been battle tested by an army of Windows users. I like refurbished models from the Dell Latitude line, others are ThinkPad people. These lines have spare parts and are repairable/upgradeable.
Pick a distro close to the middle. You want something with thousands of users so you wont suffer alone if you hit a problem. I like stock Ubuntu, and I might go as far as Mint. PopOS is beautiful but if it goes wrong, you'll be fiddling and asking for help in a much smaller community, so if that is not your jam, don't do it.
Be consistent and careful with how and what you install. Dont mix flatpaks and tarballs and snaps and god knows what else. Have a consistent, reproducible setup. Use a dir structure that makes it easy to split off your data from the OS (I know that people just have / now, but /home used to be its own partition for a reason, and /opt exists for similar separation.) If the worst happens and you need to blow the OS away, you want that to be a 20 minute operation with all your files instantly available as soon as you can remount.