The same type of bolt may be used for a lower-off or a bolt belay, but the intended purpose of a lower off differs from that of a multi-pitch bolt belay.
How to lower off different types of anchors? I've only encountered this type before : r/climbing
UKC Articles - VIDEO: A Fear of Falling - Clip-Drop Technique
Lower-Offs & Bolt Belays
Oh Shit! Sketchy Anchor Bolts - COMMON CLIMBER
CAMS - Climbing Is Better With Friends: Sport Climbing S**t
Rock Climbing Anchors - Bolted Routes — The Mountaineers
Premium Rock Climbing Belay & Lower Off Components
Know the Ropes: The Low Down on Lowering
Rappelling vs Lowering, A Semi-Scientific Study
Lower Off Initiative — American Safe Climbing Association