This was really my only problem with not having my phone, but most if not all of what I use will send you an SMS with your 2FA so this could be easily replaced with a $9 flip phone, at least for me, but YMMV.

For work I use Winauth. I am a hourly corporate tech employee with no on-call duties currently so I don't have work Slack or any work 2FA on my personal devices.

I am looking into a yubikey or similar for the future.