DTC P0300 is set to no error reported so I would not expect it to have a CEL lol. Might want to enable that.
Where is your WB channel? and you are not logging the AFR/ EQ commanded channel? A lean misfire?, the WB could help here. Bank2 seems to be the side with the issue for the most part in log C.
Look at the Seriouslog6c and watch the cold start. You are in OL, but the O2 volts are low on bank 2 during warm up and the most misfires. That is consistent. Now I woud astart looking at the injectors. These are the stockers it looks like. Test the resistance, easy. If you have a noid light set or AutoZone borrow them, You may find the injector is getting signal or maybe not or intermittent signal. The injectors themselves may need serious cleaning. Buy one of the cheap kits from Amazon and replace the little filters inside the top barrel. Get different o-rings though. If you go back and watch that c log it does not have misfires while driving, only at the lowest rpm, Duty Cycle of injectors and high vacuum. WB would be very helpful here. You can switch it from side to side in the NB positions to verify the cold start fuel condition that is showing up in these logs.
1,2,4,7 and 8 have lingering misfires on cold start. On log d they seem to be about equally misfiring from bank to bank. But again what is interesting is as soon as you give it gas the misfires stop. Only under high vacuum which is different, in vacuum the fuel is literally sucked out of the injectors. I would say this is pointing to a sticky set of injectors or weak winding. Swap out 5 and 6 injectors with the most common misfire cylinders, I would say 1,2,7,8 are the worst and swap them with 5 and 6 and watch if the misfires follow each the injectors. Inconvenient yes but basically free just time and effort. I did not dive too deep into the logs and tune progress as you already had some help there.
Good luck and stay tuned.
Homdaeater.