Some other user just recently made a statement about that.
So there is hope.
Maybe there is a user manual available on specific Android pages since it is a default Android app.
I think documentation is still a major lack these days, who likes to write plenty of pages summing up several MBs of data.
Btw. if features were provided in a simple form of external text based configuration files this would rather not speak positive for having a “smart” device these days. There may be exceptions e.g. .nomedia, but adjusting simple behavior such as file sorting etc. should be implemented as on/off setting in any app…which is no problem for the recommended simple g…