You can also answer with a combo since you can do that
Question: Does Falco have the Beast Titan now since he had Zeke’s spinal fluid and Zeke is now dead or does someone else have it and he just got some of the abilities?
I’m guessing he straight-up has the Beast Titan now, 'cause otherwise I’d always have a royal Beast (or other) Titan shifter and just convert people that way.
OR maybe it’s just that all the Titan serum that’s been used so far has been from someone like, say, the Colossal/Attack Titan shifters? My reason for thinking this is that currently we’re in the era of “human anatomy-like” Titan shifters, (reference Annie, Bertoldt, Reiner, Pieck, Armin, and Eren who all have very “mild” features of simply being skinless or regularly covered as opposed to
