If they stick to it, that is great news. But we should take it with a grain of salt, as these annual reports are usually made "pretty" for shareholders. "Support" can as well mean bug fixes until 2024 but only content until 2022. I believe Planet Coaster is also still marked as "supported". And besides that, it can also mean, the franchise is supported - which means console version in 2022 or 2023, but no new content for PC after end of 2021.If it helps, the frontier annual report has planet zoo listed as being supported to 2024. And investments overall left them in a good enough position to afford to begin producing two new games, so they have funding to do more.