No I am not... I got this. And any good developer will tell you the same. There is absolutely nothing that cannot be done personally in-house without any 3rd party controls or services required.
But these 3rd parties try to misrepresent the truth and claim it cannot be done without them. Absolutely false and fraudulent. You can personally serve up apps that facilitate any device with no problem at all. There is no need at all for their manipulation nonsense.
how do you explain google blocking truth social for months for being on the app store??
My last Android based phone failed on one of the OS updates and that update was a prerequisite for any further updates. Pretty soon I was 5 versions behind and no current apps would work with the outdated version of Android. It was a cheap prepaid phone so there was no such thing as support.
Maybe 1% of phone users can do all the things you can, side load apps, make any app version work with any OS version etc, but telling the other 99% how stupid they are for not being able to do the same is no help.