Mostly for developing front end sites, using frameworks such as React also used on server side.
Pretty much the same as JavaScript, used to create front end applications as well as server side
For creating native FFmpeg/GStreamer applications, sometimes use it with OpenCV
For creating server side applications with Tomcat/Spring Boot, also used it to create Android applications
For creating Android applications, also its the main language for Android Compose
For building iOS applications, however I don't have a Mac anymore :(
For building an adminstor page I mostly use this for side projects.
For building an administor page also used for various side projects.
For creating a matchmaking application, still pretty new
For live streaming/recording. Also transcoding
Pretty much the same as FFmpeg but GStreamer is used mostly for live streaming
For live streaming services, I've also used various SFUs/MCUs mostly mediasoup