Call quality is important to me, using it for work and entertainment only, ipx rating dun really matter, not falling out is definitely a plus point..
in terms of call quality, I would say truengine 3 se is better than galaxy buds+, cuz I have no issues having calls inside MRT.
the person on the other end can hear me clearly and they can't really hear the MRT noise in the background
for galaxy buds+, they could still hear hear a bit MRT noise in the background
since you don't wear them for exercise, then the other factor will be music quality, which is subjective for galaxy buds+ vs truengine 3 SE.
its really down to your own ears and what kinda music you listen to regularly.