@Quest7 

I am only guessing here, and taking into account TP-Link FAQ on this, https://www.tp-link.com/us/support/faq/2096/ but I think that the router determines WHERE the connection point is and handles the strength of signal to where it is needed?

I'll also tell you some router's that have this feature CAN NOT turn it off (my Archer A20 for instance, assuming the literature is correct as well as the Spec's).

I have my router just about as far as I can have it from the opposite end of the home. Guessing 80 to 90 feet away with some walls and pipes between the router and a device at that end. Speed tests show NO degradation on the 5Ghz SSID, but a slight one on the 2.4Ghz SSID, which seems to be what one would expect at that distance.

One way to tell for sure, test it out. If your router can disable beamforming, try it with and without.