Go get the battery, alternator, voltage reg, etc. checked anyways. Sometimes you get a bad battery. Autozone with do it for free.
I've had bad or fouling plugs give me a rough idle, as well. Might be good idea to check those out and test the coil packs.
'12 Buick Enclave 139,xxx
Valvoline ML SynBlend 5w30
'17 Ford Fusion (Company Lease) 42,xxx
Oil – Don't know
Filter – Don't care