That doesn’t even mention the changes to webrequest. Here’s an intro: https://developer.chrome.com/docs/extensions/migrating/blocking-web-requests/

until June 24 also the adblocker devs have updated their products for sure.

If you understood the differences between manifest v2 and v3 you’d understand that it’s pretty much impossible to make an ad blocker with the same effectiveness in V3 as in V2.

So they will exist, just be worse.

The V3 version of ublock should really use a different name to make it clear it doesn’t have the same capabilities as in V2/Firefox. Maybe something like UBlock use-firefox-instead.