FWIW, my most recent regen from (mostly) around town driving on my 2020 HO:
Last active regen (gauge ~45%) was 342 miles, @16 hours, (6 idle 10 drive).
I was forced to stop (work site visit) before regen completed.
It took approx 60 mins total (30/30) and 35 miles (15/20). The first half was city (boulevard) driving up to 55 or so, took and a few miles highway @70+, about 30 mins total. I detoured my destination and drove highway as long as I could afford timewise.
On my return trip home I took a different route that is 95% highway. Traffic was light so I was able to maintain higher speeds. Added more detour past the house and it finished after ~30 mins.
EGT temps post DPF hovered between 930-1080. On that higher end if I was running 85+