Couldn't find this with a search so here we go.

I'd say it's pretty clear that Jiren is stronger than Broly (fights off Goku, Vegeta and 17 at their strongest without going full power and when it's mentioned that he's above GoD level it's less nebulous than Goku's guess about Broly's power). But I'm not sure how Jiren stacks up to Gogeta.

So here we go with Jiren taking on Super era Gogeta.

Can the Pride Trooper defeat the fusion?