Here is the problem with whats happening with the maintenance ending for perpetual licences, there is no guarantee that when the maintenance ends that the features included at that time are bug-free and fully working as they should. This is the reason I dont like bug updates merged in with feature upgrades, they should be kept separate. Bugs are there because they either were not fixed before the feature was released or a feature upgrade broke things.
My concern, therefore, is what state will the Substance Painter be left in for the last of the perpetual maintenance on October 31, 2021. Whatever that will be is what perpetual owners will be left with for good.
Its fine to say if you don't like it go elsewhere, but the simple fact is there is no substitute for Substance Painter, its very unique, and that's not taking into account the time spent mastering it. Yes it is what is it, but its more than fair to not be happy about it and vent a little.
PS: Marvelous Designer is going the same route, they all will, then at some point to those who are now ok with it will come to realize that it works out very, very expensive to keep all your software you may be using now.