The template of this meme is that of the man who cheerfully points his hand at a butterfly, asking “Is this a pigeon”?. In this meme, the man has been covered with icons of the applications IntelliJ, VSCode, Chromium and Signal. The butterfly which he points to is overlaid with the caption “.config”. He asks “Is this a trash can?” At the bottom of the image, we see the command du -sh executed on the directories .config/chromium/ and .config/Code, yielding file sizes of 1016M and 83M respectively.
You could just add an exception to not backup .cache
The point is that many programs completely ignore
.cache’s existence — when programs do actually use it, adding a backup exception is trivial, but having to manually find what’s actually cache in.config(or, even worse, finding one SQLite database with the config and cache) complicates it.