There are 2 editions of Minecraft. One, is the original one, now called Java edition. They definately still work on it, because despite not running well on Java

There are 2 editions of Minecraft. One, is the original one, now called Java edition. They definately still work on it, because despite not running well on Java > 8 for a long time, it now does. But afaik, they're still stuck on LWJGL 2. The newer one written in C++ was first called "pocket edition" and targeted mobile. It's now called "Bedrock edition" and is also the version that has RTX support. It'll be hard to move the modding community over to the Bedrock edition. I personally don't have any knowledge how limited modding is in the latter one.