I have 287 GIGAbytes of mods (!) yet I can barely play on a single server. Every single server requires additional mods to be downloaded. I am sure a good percentage of these have not been accessed for years, and are taking up precious SSD space.

I would like the MODS section of the launcher to have a SORT BY option. And for one of those options to be SORT BY LAST ACCESSED (or last launched, or whatever context makes these feature feasible).
Then I can delete all the gigabytes of useless crap filling up my SSD,

The 'sort by last accessed' option in Windows file manager does nothing, and anyway, those folders specifically state to NOT manually delete things from the folder.