Mail app in iOS

So, there's been a huge amount of new releases for ios14. BUT the mail app still has not been updated to facilitate collapsing of folders. It is impossible to file emails on the go when I have to search through hundreds of folders. And with email traffic on the increase the only way to manage the hundreds of emails received each day is to keep on top of it.

Please, please, PLEASE just allow collapsing of folders within iOS so that I can reach other folders easily.