One of my teenage children is getting into Bitcoin, so bought them a Trezor safe 3, however the app wont load on their crappy laptop, leaving only my PC that i use with my Trezor/ Trezor Suite.

I read its possible to use multiple Trezor`s with Trezor Suite, however there`s no guide how to do this.

My main concern is maintaining access to my balance while the device is not plugged in.

If i plug in a new device does that info disappear replacing with the new device balance until i plug mine in again?

Is there a way to switch between both watch wallets while neither are plugged in. For all the YouTube videos on setting up Trezor i couldnt find anything related to this question, which is surprising as i would have thought many people diversify wallets / devices anyway.