I have a question!! Does the effect of Botox decrease if you keep getting it?

I've had Botox a few times, and it suddenly occurred to me that if I keep getting it, the effect might wear off over time.

People around me say it's fine to take it for a long time, but some people say they developed a tolerance and don't see the same effect as before.

Are there any of you who have actually been getting Botox for a long time? I'm curious if the effects lasted and how often you received treatments!