I'll be at the Fort in January 2022 and might run some side-by-side hotspot versus wifi comparisons. They have been closing loops intermittently in the past year and doing "wiring" work but we couldn't confirm if that was for electrical, communications, or something else. Faster wifi would be fine with everybody. As would improved cellular data throughput.
@jaxjags gave us some hard data for tmobile and spring which is good.
Data wins every time when compared to speculation.
I don't miss the days of dial-up modems or cable tv boxes for internet connectivity checked out from the Meadow Trading Post.

Not one bit.
Bama Ed
PS - the Fort was the last on-property resort to get wifi several years ago so I would assume whatever kind of upgrades (wifi/cellular) taking place at the Fort has happened or is happening at the other Disney resorts too.