Temporary use of remote nodes is useful in order to use Monero immediately (hence the name bootstrap), however be aware that when using remote nodes (including with the bootstrap setting), nodes could track your IP address, track your "restore height" and associated block request data, and send you inaccurate information to learn more about transactions you make.
Create portable wallets and use them on any PC. Enable if you installed Monero on a USB stick, an external drive, or any other portable storage medium.