What are "T Google Enrolment" and "X Google Enrolment" In my Pixel 3 with stock ROM I can see (among other) apps called "T Google Enrolment" and "X Google Enrolment".  What are these and what do they do? Can I safely disable them?

UPDATE: If, as alluded in an answer, these are listening for "OK Google" phrase, why are there two of them and how are they different from "OK Google enrolment"?
To disable it:

Open Settings
Search for &quot;OK Google&quot;
Choose &quot;OK Google Enrolment&quot;
Select info
Push the &quot;Force stop&quot; button
Push the &quot;Disable&quot; button