I'm trying to setup a Google Optimize Container for A/B testing + other. The issue I'm having is that I definitely need to link to Google Analytics in order to measure results. When I try and link to a Google Analytics property for this only the Universal Analytics properties I have (which I don't actually use) show up, but not the Google Analytics 4 property I'm actually using. Am I doing something wrong? Is the connection not actually implemented yet by Google?
TL;DR: Google Analytics 4 Properties don't show up as linkable in Google Optimize Container.
UPDATE 2021/04/06:
Trying to link it in Google Optimize says Coming Soon. Looks like we just have to wait.