I noticed that accessing folders within DTTG over the File Provider with the Files app, leads to some sort of crash, when there are many files in a folder.
I am not sure where the problems begin, but they seem be there from about 500 files in a folder.
I am not sure, if this is something, that needs to be fixed in DTTG, or if this is a iOS problem.
Anyway, it is very disturbing and annoying.