All good advice above. Especially using a Center of Excellence and your consideration of Mayo Phoenix would be well worth it IMneverHO.
I had the same Gleason score 3+4 at age 75 but with the caveat of the worst area being near the margin (possible escape of PC) so I went right for the RALP (done 1/2022). However, the pathology of the tumor sadly but in a very valuable way showed "positive" margins; the PC had escaped. To me, this clear info was the advantage of prostatectomy. I/we knew what the situation was and I did 2-years of ADT (Lupron). Now my PSA is negligible for which I'm most thankful.
You might strongly consider Dr Patrick Walsh's book, "Surviving Prostrate Cancer" (available at Amazon & etc). For sure get the latest edition as the older versions don't contain the extensive improvements in PC diagnoses and treatment of the last 5-years. It will also address your concerns of continence and frequency post treatment.
And don't forget the "active" part of Active Surveillance. I"m sure that term intends to encourage research such as: quiz multiple doctors/specialissts, read, study, computer search, and dig into all the info you can.
God Speed to you on this life changing and, most hopefully, reaffirming journey!