Sorry, provisional 2022 (or 2021 as it was originally down for) was the deal that was voted back on in 2018 and opting for stability and a refined version of the v6. The proposed engine rules was removing certain items, and allowing more plug and play elements from different suppliers. Albeit voted back, now that Honda are leaving it wouldn't surprise me that it re-opens that discussion. Renault being forced to supply engines might not yield the result the sport needs, potentially Red Bull might push for a new supplier as well as I think this puts Verstappen's position under the spotlight now as well (ie. he wants a works engine in the Red Bull, not a customer engine).
2026 is a blank canvas for engine rules at the minute, potential hydrogen based engines is being spoken about, but all rumours.