Lowercase output (folder) names

Requested Feature

For some reason, when I download a playlist I end up with some artist having multiple folders but in different casing styles, e.g. all letters uppercase and all lowercase, or first letter of middle name sometimes with upper and sometimes with lower case.

This causes an issue on android, because folder names with different casing are considered the same (exFAT moment). I download on my PC: creates folders artist and ARTIST, and then sync to android, which then fails.

My request is as following: a way to lowecase variables in the output setting or a setting that lowercases everything in some way.

For reference, my output is {album-artist}/{album}/{title}.{output-ext}. I have only seen album-artist with different casings (so far).

Possible implementation

For example allowing {lower(album-artist)} in the output setting, or when setting restrict to strict automatically lowercase the full output?