There's not going to be 5 "Safe Democrat" seats in Connecticut in 2022. At least one will be slightly competitive.
CT-5 and perhaps CT-2 would be Likely D at worst given the tough environment, but a status quo map means 5 Safe D seats in a neutral year. Obviously that could change depending on broader long-term trends (I'd be more worried about CT-2 than CT-5 in the medium to long term; Biden outperformed Obama '12 in CT-5 so trends appear to be positive).
Hayes won by 12 in 2020, and every Democrat should prepare for a 10 point swing (or worse) against them for 2022, as that's exactly what happened to Republicans in 2018 and 2020 was better for Dems than 2016 was for R's in the PV. So I don't really think even Likely D is the worst scenario.