Happy holidays to me, I can kick this can down the road too.
Look at some of the known issues: https://developer.chrome.com/docs/extensions/mv3/known-issue...
Userscript managers support
Estimated timeline: Canary support around October, 2022.
Service workers are not started in response to webRequest events
Estimated timeline: Targeting Canary support before October, 2022.
No way they were going to be ready to disable v2 in January for the stable channel.