I've got this problem too (MBP2019 13" 2 ports) battery life is terrible, (battery goes down 10% in 20 minutes) barely lasts 3 hours says battery service recommended but battery capacity is 98% fans go absolutely crazy on even minimal tasks keyboard brightness doesnt go as high as it used to touchbar icons go green on startup tried PRAM reset, but went back to service recommended after a restart How do i go back to catalina without having a backup while wanting to keep my current files and applications?