I mean I am not part of the same company, so I am just talking out of my butt, but I cannot imagine a dev worth their money taking more than two weeks, to fix a bug, especially today with AI assistance, most bugs are found the same day, the gnarly ones maybe take two days and in my lifetime as an engineer (10 years), I have not yet seen a bug that took me more than a week.

Taking 9 months to fix a bug sounds alarming to me.