People didn't forget it's just that there were more versions of 10 released since that one that have support until 2029 even. It's not like the first release was the last LTSC release.

This has been beaten to death already. Microsoft never said it, that one dude did. It wasnt an official statement and even that guy probably didnt mean it as a "forever, all time, omg no changes okay guys?"

Win 10 had an EOL of 2025 set back in 2015. People just forgot I guess until now?

If you're referring to Mr. Gates, He hasn't been CEO since 2000.  Windows 10 came out in 2015.  Don't blame him.

Dear Bill, "forever" != 5-10 years.