2016, 2021, and maybe 2017 and 2019 are the versions of Steph that immediately come to mind as peak Steph years.
Even though Steph got his Finals MVP in 2022, he had his worst regular season since like 2013, and his overall playoff numbers weren’t quite as good as some of his other years so I probably wouldn’t say this was peak Steph.
Yeah 2016 Steph was still a huge liability on D because he lacked the strength and wisdom. He improved a fair amount on the defensive end.