Any feedbacks with the gopro hero black 13 while diving ?

[ACHiPo]

I had the Gopro hero black 7 which I sold, videos while diving were okeish, reasonable. I also had the Flip with multiple different colors, sorry but was kindda disappointing, unless I didn't set the Gopro correctly for when using the Flip. In the end I lost the Flip while jumping from the boat to the water, and I doubt I will buy a new Flip after that.
So my question is, is the 13 a big improvement to the 7 or it will be more or less the same quality of footage UW ?

My situation, except I still have the 7. It meets my needs except GoPro no longer support the Quik software for models without WiFi/Bluetooth, which I found really handy for making clips small enough to send/post. I'm trying to decide whether to keep my 7 with all the accessories, to upgrade to a 13 (and buy a bunch of non-compatible new accessories) or switch to a different platform (as GoPro irritated me with their force obsolescence of the 7).