I go by VoLTE -> Vo-L-T-E.

Agree on the matter. Walled garden is the wrong term imo but there are shared symptoms.
The cause is very different tho. We have no elitist payed guys "sitting" on their knowledge, only releasing it for rolling bucks.
The cause for info about the Pro¹ port being scattered or only available on request is because no one (but the porters actually on gitlab) keep documentation up to date and cares to announce changes.

That, looking at myself, is just because no one cares to document (or publically blog) for such tiny userbase.
Heck, when i reflashed last week i followed 3 different blogs before realizing they are all outdated (youngest only 3 month old) and flashing the port nowadays is as simple as get fastboot to work and execute a flash.sh.
Next realization, i am the first to even flash the 4.0.1 build from then 7 days ago and did not expect it to be non-operational at all. Leading to yet some hours more noobishly trying to figure basic stuff out.
From that i learned yet again, in such a tiny community just ask at the source.

And that is not at all Discord centric in Pro¹ case. There we just have a user party trying to help each other out in "zero level support" fashion to not bug the porters with minor stuff.
The porters them self are available on Telegram and answer to everything within a day from my experience.
https://t.me/sfos_user_pro1