I've been doing it for years in Central Wisconsin during the late fall days when the surface of the ground freezes at night and thaws during the daytime. I think I have better survival rate than with spring planting. That said, my soil is sand that I can stomp all the air pockets out of. I haven't tried it on heavier soil.
A different approach that I used in 2023 - 2024 was to dig up a bunch of evergreens in fall, put about 15 per pot together in 2 gallon black plastic pots, fill the pots with sand, water them to wash the sand in around the roots, add more sand, re-water if warranted, bury the pots along the south-facing side of my house, dig the pots up in spring after the frost went out, pot them individually in sand, and plant them in late fall. Their tops showed little to no sign of growth over the summer, but they had tremendous roots by the time I planted them.