If you are a fan of pokemon and want actually challenging games with stories that vary in quality, fan games and ROM hacks are your go-to.
My personal recommendations right now are Pokemon Vanguard and Unbreakable Ties, both phenomenal fan games despite not even being completed yet. You'll get well over something like 20-30 hours alone with Unbreakable Ties and it's just in its 4th beta. Both feel like passion projects in the best way possible and Unbreakable Ties is looking to be a master craft in the art department as well (minus a few fullscreen art scenes that pop up).
At most, you'll have to join a discord server, as annoying as it is, if you want more up to date info on the game and download links.
Can you say government full of children masquerading as adults? I swear the right see the most mild thing and immediately turn into crying babies (which is an insult to babies everywhere, so I apologize to the real babies).