Posting rules: stages, quorums and the approval status field — Stages: who is asked, and how many must agree
Each stage names its approvers one of three ways: picked people, a People field on the record (the account manager approves their own account's records — routing no fixed list can do), or a role (any workspace Admin). Its quorum is everyone, any one, or N of M.
Within a stage, approvers are asked in parallel. Between stages the flow is strictly sequential: the next stage's people aren't asked until the previous quorum clears, so nobody ever sees an ask that might not matter. The moment a quorum is met the record advances — same instant, same transaction, no sweep to wait for.