As per the qualifying user's definition I do not see the feature & js API working in the latest chrome release 89.
The chrome feature status also states this as behind developer flag. I was able to force enable API using blink feature but doesn't seem to be ideal for OT.

Can we please elaborate on the Origin Trial scope and coverage around following:

1. Is this FloC data available by default to only Chrome/Google at scale through account sync?
2. How can any publisher , ssp , advertiser analyse the floc data at scale during OT phase?
3. Will this ID / API be available for all qualifying users or there are other sampling / selection criteria?
4. There was an initial proposal to expose this through headers as well - sec-ch-flock is that still in roadmap?