I'm with windows on this one. Case insensitive is much more ergonomics with the only sacrifice represented by this meme. And a little bit of performance of course. But the ergonomics are worth it imo.
so cool story, on linux theres this thing called you can just not make case sensitive files, i do it a lot.
You can also just, use a case insensitive autocomplete setup as well. If you're using a mouse idk why you're even talking about this so that wouldn't matter.
In the case of zsh it will quite happily do either and ask you which you meant just like if they were called Dir1 and Dir2. Also works if you have a dir1 and Dir2 in the same directory as well
it depends on your shell configs. In my case it sits at dir/Dir (case insensitive) waiting for me to specify 1 or 2, where as if you disable it, it's dependent on whether or not you type d or D.
If you have "Dir1" and "DIR2" and you type "cd d", your prompt will look like in the next picture. Fish automatically transforms "d" into "D", because there is no dir starting with the lowercase "d".
On a subsequent <TAB> you'll get a list of dirs matching your prompt so far in which you choose an entry with the cursor key and enter it with the enter key.
You can just not use capital letters if you feel like it. Works pretty well. Or just use a case insensitive shell handler for pretending it's not actually cased at all.
Hell im pretty sure you could just render all of the text in a certain case and call it a day lol.
Iirc Ubuntu names their home files "Downloads", "Documents", and so on. Same with windows (there are a lot of uppercase letters in windows files). I've had issues with Cargo.toml before. And not just cargo, many config files use case to signal priority (so if both Makefile and makefile exist, Makefile will be used (or other way around)). Downloaded files are a gamble. Files created by user input (so for example if I wanted my user to be "Calcopiritus", my home would be "/home/Calcopiritus".
Uppercase letters might not be common in filenames, but they are not nonexistent.