d) different set of roles are going to be cleaned up? According to rumors meta is flattening and requires many managers to switch to ic roles with mandatory coding/delivering. Could be a chance to clear the house there too. Also perf review results, won’t be surprised if not only individual perf was reviewed but whole teams/orgs.

In general, I think, that Facebook (and rest of faang/ms/etc in similar proportions) now are building plans what/whom they need to cut off if they want to operate with 50k/35k/25k/15k total headcount.