wi fi - Is there a way to access the phone filesystem from computer, wireless?

Known solutions:

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  USB Mass Storage (sadly, mostly deprecated on Android 4, 5, etc.).

  
  


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  MTP, and I know its benefits (a lot) and its weaknesses (browsing on a MTP drive with Windows Explorer has poor integration of usual features: try to right click on a file on a MTP drive, you don't have the usual UI things like Open with etc.)

  
  
  


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  Samba

  
  


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  FTP server solutions (good solution, but 1) how to use this if I'm on the road, with no Wifi router like at home? then I cannot link computer <---> phone? 2) it seems that such an app doesn't offer access to external sd card)

  
  


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  AirDroid, etc.

  
  

But with all these methods, you don't really have access on your computer to the phone's filesystem like if it was a local folder.

Question:

Isn't there no solution in 2017 that makes it possible to browse the phone's filesystem as if it was a computer local folder, easily?