All materials look unlit, even tho they are lit.

[timber marsh]

see the screenshot. Happened after changing to urp and upgrading shaders

[unkempt turret]

Hmm.
So they look like that when applied in the scene view too?

[timber marsh]

yes

and changing them to unlit and then lit does nothing

[lean venture]

Try creating a lit shader using shader graph and apply it to the materials