You’re right that mega evolutions were great in that it gave certain Pokemon a second chance to be useful however even that took a wrong turn when they mainly focused all mega evolutions to to all the popular Pokemon who were already great to begin with. On top of that, it did continue forward which I feel would have been another opportunity to give those not-so-great pokemon that chance.
Most of Nintendo’s high-end franchises have been able to “evolve” except for Pokemon. Even the proven -to-always-work ones have taken great steps forward. For a franchise based on an RPG that honestly has plenty to pull from it’s resistant to make itself better. The progression of a pokemon game becomes to expected and bland and to some extent it stops making sense in its own world. People have been making suggestions for years now and it’s pathetic they refuse to listen to it’s base. Scarlett and Violet should have been it’s death but people still bought into it so again, it works for sales so why would they need to add in extra resources? Once I picked up on the gimmicks (z-power and gigantamax) I knew it was getting ridiculous. The game just straight up relies on predictable concepts of grinding and higher levels encounters through progression yet it tries to pass itself off as openworld and non linear when you have orher games who clearly do it better. If a pokemon game held it’s same concepts and was called somethings else like Master Catcher or Battle Critters it wouldn’t even be considered as “great” as it is. You can’t say the same for the other franchises.
Online match? If not, that’s no for me as I’d rather emulate