With the Super Saiyan Grade 3 10x multiplier being accepted, Ultimate Gohan now one-shots Broly Arc Golden Frieza, since he is much stronger than his SSJ2, which is stronger than SSJ Grade 3, which is 10x stronger than SSJ Grade 2, which is considerably stronger than SSJ, and DBS SH SSJ Gohan should be at very least on par with SSJ Broly, who utterly stomped this Frieza for an entire hour
Off-topic, but it is funny to think that DBS SH SSJ Gohan is capable of fighting against Post-2nd UIO SSBKK20x Goku and ToP SSBE Vegeta at the same time and can one-shot them with SSJ2 alone due to SSJ G3 10x multiplier over SSJ G2, he doesn't even need his Potential Unleashed transformation to defeat the duo