battery draining issue after installaiton of windows 11

I'm seeing the same issue but I think I found the cause, not that I can find a solution. I noticed the problem too late to roll back and don't have the time to do a clean Windows 10 install.

My battery on my 6 month old laptop went from lasting 3 or 4 hours to about 20 minutes. I ran a battery health report and found that max capacity had reduced from 41000 to 34000 the day of Windows 11 update (8 November). 23000 the next week 14000 the next, 6000 the next and finally down to 2408 where it's been since.
So according to the report, capacity dropped 95% in about 3 weeks. Estimated battery life dropped from 3 hours 49 minutes to 13 minutes.

PERIOD FULL CHARGE CAPACITY DESIGN CAPACITY
2021-11-04 - 2021-11-11 41,048 mWh 41,771 mWh
2021-11-11 - 2021-11-18 33,184 mWh 41,771 mWh
2021-11-18 - 2021-11-25 23,948 mWh 41,771 mWh
2021-11-25 - 2021-12-02 14,730 mWh 41,771 mWh
2021-12-02 - 2021-12-09 6,276 mWh 41,771 mWh
2021-12-09 - 2021-12-16 2,408 mWh 41,771 mWh

So could anyone still having the drain issue please run a battery health report outlined at the link below. Check under "Battery capacity history" in the report and see if you're also seeing the same capacity issue.

https://www.lifewire.com/how-to-generate-windows-10-battery-report-4587396