Ventoy makes reinstalling operating systems or testing Linux distros much easier.
Install Ventoy once, then simply copy ISO files to your USB drive, no need to reformat it every time you add another image. It also supports multiple operating systems, Secure Boot, persistence, and many rescue tools.
GitHub: https://github.com/ventoy/Ventoy
More details: https://digitalescapetools.com/tools/tool.html?id=ventoy
More privacy-friendly tools: https://digitalescapetools.com/
the iso don’t even all need to be on the same ventoy, either… since you can browse other disks and boot .iso off those, too.