In case of a disk image, to test or use a different distro (or a distro inside windows) without repartitioning the drive.
Check "Installing windows in a disk image", that's genial. https://github.com/sebanc/linuxloops/blob/main/Readme/Recommended-setups.md
I like the arm world because you don't have only two players which are boring and are not good at all if you think of a world wide technological progress. It's a rather poor world actually.
I'm trying a cheap arm Chromebook now and I can say it could replace a standard pc/mac already, in terms of performances. Mediatek can already challenge apple and snapdragon so we already have 3 players but I think Samsung, and unisoc will enter the arena. Rockchip already did it with chromebooks and they look enough too.