Epic does have its steamworks alternative called epic online services which provide more or less the same functionality (achievements, p2p networking, anti cheat…) but it’s also completely free, cross store, and cross engine

https://dev.epicgames.com/en-US/services-games

Valve’s custom wayland compositor used on steam os

Pro tip : if you self host use vaultwarden. It’s 100℅ compatible with all bitwarden clients but has many more features and is lighter weight

Not op but as a muslim the same applies to the whole universe. Just because the religious books talk mostly about the earth doesn’t mean other planets don’t exist. Infact the quran says that allah created the universe and is expanding it