I've seen lots of videos on ARGs and well known ones but how do you find new and old ones that haven't been found yet?

I decided to create this post for people trying to find the default JVM arguments in Minecraft.

These are the original classic JVM Arguments for Minecraft since Minecraft 1.5.2 until Minecraft 1.14.x. If your PC is struggling with performance or you're using an old version of Minecraft (1.13.x Below). Use these arguments:

CMS (Old/Inferior)

-Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M

If your using any version above 1.14.x, you'll immediately have this JVM arguments defaulted when launching. These are great JVM Arguments for Beefier PC's but if you're using very old hardware (like me) the first one is a better choice for performance and stability.

G1GC (New/Default)

-Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M

At this point we'd be done but below are I THINK is the reason why they decided to change these to a more robust and better but laggier Garbage Collector. At this point if you don't want to read technical stuff just pick between the two and test which one is better for you're system.

Now for MY reason why they decided to switch to G1GC.I think the best reason why they switch is that the CMS Collector has been deprecated in Java 9 and was removed in Java 14. My other reason is that the game became too complex that the CMS Collector ain't viable for the game anymore and maybe because of that is when they upgraded to G1GC.

Disclaimer everything I just said about the G1GC switch above are all my opinions and are not stated by Mojang or anyone tbh.. idk. :PP

I actually posted this first at r/Minecraft and second at r/Optifine but I think this will get more traction here or idk man I just wanna share smthn I learned lol xdddd