OEM or copy brand

[MAX-24-Dean]

Yes and no. If buried with 75°c rated lugs, copper is rated 115A, so a 125 A breaker is ok.
this is where it gets dicey. Some old panels arnt rated, so they fall to the 60° code, in which your answer is correct.

im so glad i retired From electrical.

I just assumed that it was an old non rated panel because the utility is requiring an upgrade.
I should not have assumed that, but all the utility required panel upgrades I have done were non rated panels.

Yep, I'm glad I retired from electrical also.