Once you've got your live USB, boot to your USB drive in your PC's BIOS, and your Linux distro will boot up. You could extend this even further, and host a PXE server with a wide range of ISO files on ...
Ventoy is the ultimate multi-boot USB drive creation tool, in my opinion. I also use PINN, a similar tool for my Raspberry Pi OS installs, but that's for installing multiple OS on the same disk drive.
Originally I wanted to buy an EV to use as a giant rolling power plant for all the gadgets I own and get to play with as a ...