Im afraid this statistic wont tell you the whole picture because there are things strictly prohibited/not supported by v3. 100% v3 will simply mean all the extensions using those APIs simply got deleted and no longer exist.
Our solution has been to uninstall Chrome. Firefox, and when unavoidable, DuckDuckGo's private browser, are doing fine.
Firefox is gonna do MV3 too except keep the request intercepting API so it’s not terribly different.
Firefox and Safari are continuing to support HTML pages to run the background code in rather than forcing developers to use service workers with no DOM access.