This isn’t enough for work apps that require Android Device Policy unfortunately. When I researched it in November I found that it would require too many permissions so GrapheneOS isn’t planning on supporting it.

I wanted to do that but need to use Google apps for work (specifically google chat won’t work).

How was the affect of this? Was there a quantifiable lower amount of people coming with scam tickets?

Yep, more likely intentional than just a technical issue with the website.