I cross checked info on latest RPA foundation course(shown below):
It says its applicable to 20.10 versions and beyond.
So should be more aligned with the latest version that you are using.
Also, I see there are less no of courses in 2019v(13) but in latest one, there are 16 courses in total.
I guess it would be worth going through latest one to be able to practice on exactly same platform version. There won’t be a huge huge difference but yes latest is latest Coz you may miss out on few features going through 2019v which were added starting 2020v.
2019v would be more applicable for someone working in org (which is still on enterprise licensed version 2019). For you on latest community version, latest course can be considered.
Rest is your decision