Jobs are plentiful (enormous shortage of pulnonologists and most smaller hospitals are thrilled to death to recruit one) and as a result can usually find a job that fits the hours you want. If you like shift work and on/off weeks ccm allows for that. More office based 9-4 work is pulm centric or a mix of both. Call and nights are definitely more common than in other office based specialties because of bundled ICU coverage but by no means required everywhere.
Biggest $$ bang for your time is still gi/cards (precovid) but if you like general IM, want to still care outside of a specific organ system, ok with procedures, and like sick patients pulm/ccm is a good choice.