I did two doors, being in a HVHZ (high-velocity hurricane zone) in S.E. Florida, though you can get code-compliant single doors for the size of the two car space I have, to my way of thinking, two doors is a stronger alternative. I use jackshaft Liftmaster openers, with the doors in the gable end of an all-concrete wall, yes, no blocks. I'm in an urban area, and having one door open at a time is less visibility to passers-by. I have storage above the OH door tracks, for light but bulky items like Christmas decorations. I also have 4 ft. LED double lights every 4 ft. side-to-side, below the OH door tracks, so it doesn't matter if the OH door is open or closed, for the lighting. No lift. I do have a 240 sq. ft. mezzanine, for storage of heavy items, designed by an engineer, the garage has rafters, not trusses, to provide maximum space. I came-up with a jib crane to lift heavy items into the loft. The jib crane is rated at 2,000 lbs, and the heaviest thing I've lifted is less-than 300 lbs, a motorcycle engine.
Impact-rated single-light 36" exterior door on the garage side wall. The translucent glass passageway door allows entry into the otherwise totally-dark (no windows) garage without having to switch-on a light.