Are bees really a big part of how the earth or environment turns out?

Yes.
Honey bees alone pollinate 80 percent of all flowering plants, including more than 130 types of fruits and vegetables.
https://www.farmers.gov/blog/value-birds-and-bees

There are other mechanisms for some trees to propagate and a few alternative pollinators, but not nearly enough.

What @ElwoodBlues said.

https://similarworlds.com/random-subjects/5292598-Are-bees-really-a-big-part-of-how-the-earth-or-environment?rid=62989228

When the bees go, we go.

Well it bees are run by the queen. 🙃

Everything is, even the mosquitoes whose existence utterly irritates me

Yep