Help to leave Xbox insider. I'm getting constant 600~mb updates and found out it's because...

Change the Insider preview ring your console is enrolled in.

According to the link provided above the last update for General Availability was in July.

If your console is completely turned off and power removed, your console will miss the regular system updates for the preview, usually about 600-700 MB. If you miss a preview update and another is released the complete OS system, about 4.5 GB, will need to be downloaded to ensure the console has the latest update for that preview ring.

I'm in Alpha Skip Ahead preview and manually do at least 3 updates a week.

The other preview rings have less updates each week and the Omega ring has the least.

If you don't like the constant updates to the System OS it may be to your advantage to unenroll the console from the Insiders program.

Are you an Xbox insider by any chance? If so, then constant updates are normal, especially when the update is getting closer to public release. If you are getting sick of them, you can either change release ring or leave the insider altogether, just download
and launch the Xbox insider hub, and from there you can change rings or remove the console from the program altogether.

For more info on the Xbox insider prgram have a look at the insider forums here https://www.reddit.com/r/xboxinsiders/ or on the insider page on xbox wire https://news.xbox.com/en-us/insider/

What is the new 578 MB update for my Xbox I'm a insider.

Stopped chatting and on my pc.

Are you in the xbox insider program?

If so there are constant updates and at times it can get buggy

Are you part of the Xbox Insiders Program which gets constant updates before general public release?