What I’m saying is: Use CP 2.x + WooCommerce 3.9.5. That works perfectly well. CC is based on an outdated fork of WooCommerce (3.5 I think), to which a lot of taxation plugins are incompatible.
Havent tested WC past 5.0 on CP 2.x yet, but it might work with newer versions. Havent tested anymore / any further, because the client preferred a working solution over something experimental.
What happened with WC 4 / 5+ and CP 2.0 was (the nightly builds): Frontend all working, but some parts of the admin area not being displayed at all (empty screen with just a sidebar, when there should be statistics etc.).
Also some issues occuring with the selection field in the editor when editing products - which has been solved for CP 2.0.
For a German (laws)-supporting shop system, I’m using an older (fork) version of Germanized for WooCommerce, thats still supported, but not being developed further.
As with any other CP installation, some plugins wont work as expected.
Stuff like WP Super Cache is being developed by Automattic, and has added artifical incompatiblities, ie. the “supported” version. I guess thats some kind of forced push towards “better” WP versions (= v5.0+).
I find such behaviour immature and stupid, but its easy to fix as in: Replace the “Requires at least” version in the plugin comment with “4.9” and be done with it.
Also see my thread on that topic: WP Super Cache 1.8+ tests / CP compatiblity
cu, w0lf.