Computer only for crypto purchases

i have been using a Ledger, and ledger live app on a computer, the app is protected by yubikey and password, all safe.

But my family started using this desktop computer so now i have been thinking to buy a laptop or even and android tablet for the solo purpose of buying crypto, as i dont trust it anymore and my funds are a lot and i want to increase them for this bull run and keep DCA, But be safe and sleep peacefully.

Should i buy a Trezor safe 3 and import my wallet, using this new computer/tablet, or keep using the Ledger?

Ledger been doing great, 0 problems, but if i change computer, will need to configure again everything with Ledger live correct?

will i see my funds rigth away using the new ledger live app? or doest it need to syncronize again on a new device?

Just want to be as safe as possible with my investments, and avoid any drama that can happen

I migth connect it to a monitor or tv, using a usb c hub to expand the screen, i seen some deals on tablets that look nice on specs.

Anyone here uses a specific computer only for crypto storage (wallets) and to buy crypto?

any pro tips?

thanks all!!!