Despite all the changes, Manifest V3 is still limiting certain capabilities. The developer of uBlock Origin listed some of these on GitHub. According to the information, current uBlock Origin capabilities such as dynamic filtering, certain per-site switches, or regex-based filters are not supported by Manifest V3. The release of uBlock Origin Minus highlights this. It is a Manifest V3 extension, but limited in comparison to the Manifest V2-based uBlock Origin.
Google Will Disable Classic Extensions in Chrome in the Coming Months: https://www.ghacks.net/2024/05/31/google-will-disable-classic-extensions-in-chrome-in-the-coming-months/