Isn’t being stuck in an elo normal??

I see so many posts about stuck in bronze/silver/gold/plat/diamond, but like, that’s how it works no? I’m in plat and my winrate is about 50% so I’ll probs get stuck here forever lol But stats-wise, you will climb without trying, until you hit a point where you can’t go any higher without learning and improving, which means that’s your rank