Good/Bad?
I wasn't sure what to put villain on exactly, but after his turn lead I didn't think he'd have many 6x in his range, and its hard to call the river raise with less.

hmm i think i would call river.

i don't know what kind of gameplan (if any) he has for calling this flop 3-way and donking turn, but to me it makes the most sense to weight toward marginal made hands like A5, A4/A3 w/bdfd, or whatever. i really don't see why he would be slowplaying a big hand 3-way on this particular flop since people will sometimes 3bet jam over a raise with AK/AQ etc.

i think he could potentially have something like A6/86 too, but i don't understand why he would play sets or 2pair this way.

calling turn bc you think you are good (putting him on 6x or bluff) doesnt translate into raising the river when the worst card for you comes.

that said - just raise turn. assuming hes bad, losing value from so many weird pair+draw hands

Yeah, that makes lots of sense. At the time, and I still feel like this might be true, I didn't see 6x as being very frequent in his donk-range. i felt like he had a strong but vulnerable hand, and wanted to protect it maybe the arrival of the FD made him feel vulnerable, i don't know. Player type was unremarkable, seemed basic, passive, unremarkable and unimaginative.

BigRed is right it doesnt really make sense to slowplay 2p+ on the flop. which basically means my river raise folds out exactly 77. At the time though i definitely put sets and higher 2p in his range. I guess because it seemed out of character for him to donk anything less than clear value 3 ways.

Not that the results justify the play, but the follow through, and then fold on the river seems consistent with a2, 2x, 2p+ or 5dXd, 3dXd