I understand this was a new default that was introduced to WL, but at times, the File Tab is confusing than helping, for instance - when user click on render - below master section etc.
Also providing other software File Menu for reference.
If all of what the File Tab has, can also be a part of the main file menu (as mentioned in the original post) and if this could be renamed to File Operations and be made similar to the startup assistant, that can be disabled or enabled, may be one way to go about it.
This would involve a lot of reorganizing (Preferences, Tools etc.) as many features of WL are now linked to the File Tab.
Render in Master Section is also using File Tab which is now called as Export. If the render button on the master section and the Operations Window can work separate, it may be good - where the Master Section Render work like how it was before (as in picture below).
I hope something creative can be thought about and implemented by the developers in the future. (For example - File Tab becoming a Tool Window sub-menu)