I'm new to Proton mail and was trying to organise my email accounts in Proton mail. When I try to create sub folders, I get this "Maximum 3 levels in the folder hierarchy" error message.

Why is there such a limit? After searching about this, It seems that other users too have been requesting an increase in this limit.

Can you guys do something about this and increase the limit? Labels just don't work well for multiple email accounts.