Using a spot in a living room would be ok as part of a lighting scene to feature a sculpture, for instance. For ambient lighting I wouldn't use one. Even BR floods are going to be obsolete as regular A19 bulbs are now 100w equivalent at 1600 lumens. They will throw enough light when paired with a good reflector. Home Depot Costco has 10/$40.

PAR and BR are nonsensical wrt LED light bulbs. All that is referring to is the old-style reflector light bulbs they are to be a direct replacement for. LEDs don't use reflectors. They are direct emitting light sources. PAR is a parabolic reflector light bulb, BR is a hybridized R, or general reflector style which was supposed to emulate PAR without being PAR. It only matters if the light fixture you have was specifically designed to fit one bulb style more efficiently than the other, such as where the face of the the light bulb fits within a recessed fixture, or if the cavity was shaped to fit a certain bulb style, for example.

Joe