I don't distrohop but I do backup my home folder which also contains most of my settings & tweaks. I also keep a simple list of all the apps/packages I have installed in a text file.
I had to reinstall a few weeks a go (new SSD) and it took me maybe 10 minutes to make the base install + all my apps ( 'sudo apt install' with a copypaste of my list of apps), and then the time required to copy my home folder too (which was fast). Add to that the couple apps I have to manually install (like Filen for the cloud, Bitwarden for passwords) and that's it. It's really one of the things I appreciate since I switched to Linux (coming from Mac where a fresh install now takes... a lot of wasted time).