I did notice that too. There is a lack of content in the updates (1 quest per update) and a lot of characters whose storyline is still unfinished and we get introduced to a new character already. ZR1 was much better in this terms, maybe they changed the developers team.
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Ye I mean he's working on 4 or 5 different games at the same time and I can understand that organising that with a small team of maybe like 8 or less people can be difficult but then he should maybe focus on finish some games first especially the ones that have been going on the longest. And then he can focus on the rest. But I don't know what's going on the behind the scenes so I can only hope the will finish some of the games before I die.
(or before GTA 6 releases)