Today I just made a tool to force steam to record your playtime. For some reason, steam doesn't seem to work well with this game for some people.
So I'll just upload this 10 lines long script for you.
How to?
Go to your Fallout folder, and replace FalloutLauncher.exe by the one I uploaded. (you can just rename the original if you want).
The new launcher will run Fallout with fose_loader if it finds it, or will prompt you if you don't have it installed.
Does it support FOSE?
It should.
Thanks for coming, and have a good day ;)