Its incredible how much GTAOnline creatively stunted this company. Gone are the days of us seeing something like State of emergency (haters gonna hate), The warriors or Midnight club again. I miss when Rockstar did a boatload of "bad boy" games.
State of Emergency was made by VIS Entertainment, and Midnight Club was by Angel/R* San Diego (with some help from Rockstar London on the PSP remix, who also made Manhunt 2.)
The problem here, (if folks read the embedded SynthPotato tweet and understand the timeline,) isn't that Rockstar just bought all in on GTAO. These other projects existed because there was a belief and business plan that they could and should do both... unfortunately, because of internal strife and a lack of direction and an unexpectedly overwhelming increase in manpower to make then-current-gen games, the other projects all had to give way as the only thing paying off while the massive projects like RDR2 and now GTA6.
...The problem is that Rockstar stopped developing a farm league. No more partners like VIS and Team Bondi. No more relationships which turned into subsidiaries like Rockstar San Diego (formerly Angel) and Rockstar Leeds (formerly Mobius, makers of GTA LCS/VCS/CW), also Rockstar London and Rockstar Toronto/Vancouver. They haven't set up the splinter groups and small offices and partner groups who would make the other games outside of GTA which made Rockstar a publisher instead of just a GTA provider. They haven't trusted any relationships with outside studios which could make side-games or DLC or lesser sequels that were prevalent in the PS2/PS3 eras. They've worked with Grove Street Games on GTA/Bully remasters and Video Games Deluxe on LA Noire remaster and a new VR project and Virtuous on some other remasters and Double Eleven on the Switch remasters. None of those external developers have been given much leash to do anything different; arguably none are at a capable scale (or quality, though I like Double Eleven) of making flagship new Rockstar titles, but Rockstar hasn't been actively making any of these anyway.
It makes perfect sense (unfortunately) why GTAO was such a talent vortex for Rockstar studios and why other projects (in a time where new projects in general hit a wall at publisher-owned studios all across the market,) but instead of admitting that they couldn't do it all in-house anymore and letting some new blood in to re-expand the Rockstar brand, they kept course while every other vessel but the mothership GTAO.RDRO and the other huge GTA/RDR battleships sunk. And in this time of consolidations and studio closures, I wouldn't be confident that things could change once GTA6 finally ships and clears the docket.