I just noticed chopping trees doesn't scale with era. That's... Interesting.
Haven't actually looked at trees, but the rest, like stones, definitely do scale in some fashion. In the new Beyond the Monument episode they also talk about it. Would be strange if the forests wouldn't scale.
Also, I haven't seen someone mention it, but you can disable the damn unit auto cycle in one of the ini files.
Go to \User\[your login name]\my games\Sid Meier's Ciivilization VI and open UserOptions.txt
Set AutoUnitCycle 0 (from 1) and save. Saw this in a FilthyRobot stream and thought some of you might be interested.