Windows 11?

Microsoft is about to make a big announcement according to Verge.  Windows 11 maybe?

See https://www.theverge.com/2021/6/2/22465126/microsoft-windows-event-june-24th .

Windows 10 is OK, but painfully slow on my machine bought 4 years ago and, it seems, always needing updates. If it is so good, why? 

Surely if it is so great, why does it not clear rubbish slowing it down and do updates quietly in the background? My virus protection is by Avast.

Overall, I am not impressed by Windows.

I have a Chromebook and it is both lightning fast and does updates and virus checking in the background. For almost everything it is perfect. By comparison it makes Windows seem poor.