I regularly end up writing a bootable USB to start a different version of Linux or different distro. Then I came across Ventoy.
Once a USB stick is installed with Ventoy any ISO that you copy onto the stick appears in the Ventoy boot menu. Select the ISO and it boots! Just copy an ISO onto it. No need for any boot maker tools like, dd or etcher. Just copy on an ISO - that’s it.
So far tested with Manjaro, Debian and even Windows 10 - all on the same USB stick!