At best, I have toyed around with it and it’s mostly messing around with effects plugin on Soundtrap mostly for fun. Other than that, I don’t know how to exactly make a good beat.
Also does people still use LMMS as I mostly use Linux instead of Windows?
There’s two aspects of it, one is the technical aspect (learning how to use relevant software and/or hardware) and the artistic aspect (how to make a good beat, melody, chord progression etc.). Both need to be learned, and both can be learned! TBH I’m not sure what I’d recommend to a complete beginner here, but learning a DAW (digital audio workstation) like Reaper or Ardour is a good start.
I’ve been active in the Linux music production world for like 5 years, and I haven’t seen much talk about LMMS. Last time I tried using it, I didn’t manage to get it working, but that was probably mostly because they had very little documentation on how to set up and use it. Might be different nowadays, or there might be more functions that are obvious to me because I have more experience with DAWs now. I used Ardour for a couple of years, which is also FOSS but well-documented and very powerful, but its workflow isn’t great for electronic music; I’d say its main audience are people who are recording physical instruments. I use Bitwig now, it’s the only “big”, commercial DAW with a proper, native Linux version; not FOSS, though. If you want to try Ardour, look up Unfa’s tutorials.
Once you learned the basics of your software, you can search up tutorials that are more about how to make a specific genre of music.