There have been many games delisted over the years. That doesn’t mean they are deleted from your account. Prime example is Prey (2006): it had a lot of music in it they had to license from large publishers and when that license expired, they no longer could sell it. They then delisted it in 2009. You can still get the code for Steam on places like eBay, activate it, and download it. It’s very very rare that a game is both delisted and purged from CDNs. And in those cases it’s because of malware or other suspicious activity (like undisclosed crypto mining, etc IIRC).
There have been many games delisted over the years. That doesn’t mean they are deleted from your account. Prime example is Prey (2006): it had a lot of music in it they had to license from large publishers and when that license expired, they no longer could sell it. They then delisted it in 2009. You can still get the code for Steam on places like eBay, activate it, and download it. It’s very very rare that a game is both delisted and purged from CDNs. And in those cases it’s because of malware or other suspicious activity (like undisclosed crypto mining, etc IIRC).