My basil plants are thriving too much.

This is my thai basil:

And in the same pot lemon basil:

I’ve topped them quite a lot, as you can see in the bushy growth pattern.

They already started flowering months ago, even before I put them into the big pot. I read online that you just have to snip them off, and done.

But there are basically only flowers coming, and I don’t want them to waste all their power into developing seeds.

Is this normal and just a part of their lives when they reach a certain size?