csrutil disable
Restart computer
In the terminal, type
sudo open /Applications/TextEdit.app /System/Library/LaunchDaemons/com.apple.ManagedClient.enroll.plist
change
<key>com.apple.ManagedClient.enroll</key>
<true/>
to
<key>com.apple.ManagedClient.enroll</key>
<false/>
So that the changes take effect
First, let me get off my chest, that skipmdm.com now seems to be scammy to me. It is not free as every post and video I watched eluded to. They want $30 or $50 to add your serial number to their list. Not sure how protected you need to keep your serial number, but I wasn't giving them that info or paying them for a simple script. SO with that, I just updated from Ventura 13.0 to Sonoma 14.6.1 via software update.
You have to have Wifi on when you go through the update prompts before the restart. After fully updated, I was on the login screen. From there, I followed the steps below by booting into recovery mode. I turned off the WiFi in recovery mode. I ran all of the commands below. The only errors I got were with:
After restarting, I logged in to my account and everything was fine. No pop-ups, didn't even go through the hello screens and all of those.
Now fingers crossed it works for Sequoia next week. Someone wanna be that guinea pig? HAHA!
Thanks so much to everyone who helped out on this post. Appreciate you all!