Media report there are 4600+ claims filed to date. Assuming 20 reviewers (I do not know how many staff there are, this is just to make an estimate), spending a day on each claim, and that's already a year to deal with all the claims (less those already done, plus any new claims).
I applied in Nov of 2020 and received my approval letter October 2021, and $5000 about 2 weeks later. The rest is TBD after all claims are processed. They are curreny on about 10000 of 20000 claims very frustrating as there is no timeliness to completion.