If Base Gogeta is above Ssj Blue Goku, Vegeta and Golden Freeza from DBS: Broly (which I don't think he is), then, I can think that he can pass the three rounds for sure with ease. And if Gogeta could beat Vegetto Blue (which seems unlikely to me), he definitely gets clapped by Suppressed Jiren.
The regular SSJ forms would definitely give Suppressed Jiren a run for his money, and with SSJ3 can definitely defeat him, you can also bet on SSJ2 to do the same if you have a more than 2x multiplier of SSJ2 over SSJ. He needs God forms to be able to compete with monsters such as Full Power Jiren or MUI Goku, though.
Also, how strong is Infinite Zamasu? Gogeta has an actual way to defeat him? Can he even vaporize fused Zamasu in his body form on his own?
Kinda crazy to think Base Gogeta > Blue Vegetto, so that's where I'll say he stops.
I think he's solidly on the SSJBE/KKx20 level though, which is more or less where Blue Vegetto and Suppressed Jiren sit.
It actually depends on distinct factors, because some people think that the boost from fusions of God forms are lower than normal, therefore it lefts room for interpretation and is plausible to think that SSJ Gogeta is stronger than Goku Black arc Vegetto Blue even without having to forcefully put SSJ Goku and Vegeta from DBS: Broly above their Blue counterparts from the Goku Black saga; unless you don't follow this, which I don't. Other people also have SSJG multiplier being reduced after BoG.
