I write longform. I have imported my txt/md files along with the corresponding images to be filed under alphabetic subfolders with assets folders right beneath them (so as to have them work with the Taio app as well) so from a file management point of view it was useful to have the attachments correspond to the md files (in Obsidian you can put your attachments to be embedded in any folders as long as the filenames are unique, which I always keep unique).
The QuickSwitcher does get crowded indeed but for that I use the exclusion in Files&Links (which puts the md files always on top):
/[A-Z][/\\]assets[/\\].*?[.](jpeg|jpg|png)/
For other people it would be something like:
/.*?[/\\]attachments[/\\].*?[.](jpeg|jpg|png)/
By the way, I just saw this a while ago (didn’t try it as I’m not about to move anything yet):