I’d advice setting up a password store[0] which does allow to get OTP codes right on the same device, but of course, it kinda defeats the purpose of 2FA but I still use it for not so important stuff.

[0] https://passwordstore.org

imo, as long as you combine "something you know" and "something you have," the effect is the same. So if you store your 2fa encrypted with a on your computer with a key only you know, it accomplishes the same thing.

Anyone who’s used Apple 2FA on a Mac would be familiar with this - you can take the code from the same computer you’re using to log on to the Apple service.

KeePassXC can handle TOTP on a computer. You can use KeePassDX on Android as well and keep them synced with Syncthing.

Bitwarden let's you use 2fa from your password vault if you pay $10/yr.

i have coworkers who get an old phone with nothing in it for the 2fa needs

There are desktop apps for 2FA