A simple approach is to just ban personal phones while at work.
You can forward your number to a work phone while you're on duty, you don't need to carry a personal device with you.
You can forward your number to a work phone while you're on duty, you don't need to carry a personal device with you.
About once a week security folks wander through the offices looking for phones with some type of detector. God help the person who brought their phone in.
That's when you check the TOTP code on your phone, put it back on the stack of phones, and race as fast as you can back to your desk to enter the code before it expires.