EDIT: Thank you all for your answers, now I'm reassured this platform is in good hands and we will always have the freedom to switch. Let's make this place vibrant, diverse and decentralized, like the old web used to be.

I feel like this instance is getting too big and all the content is being centralized here. Am I right or there are other instances thriving too?

Wherever I go I keep seeing lots of lemmy.world users and communities and kind of feel worried about centralization.