Do GLP really work for pcos?

I seen a lot of people say glp has saved them while having pcos. And I want to know for thoes who are taking glp how long have you taken them. Are there any long term side effects? Can I still take birth control? Will I still be able to take metformin? How long did it take to see it was working? And what brand works best for pcos/ what brand do you use. And which ones are somewhat affordable (I may want the link in dms and I don’t have insurance)