Rockstar historically always have delayed pc port, and issues on launch for their pc release. Maybe 2026 is more on reality (gta 4 pc port is released in less than a year, and it was the worst performing gta on pc iirc).
Historically consoles have been much more specialized. The last GTA came out in the PS3 era. The PS3 used the cell microprocessor which was famously hard to develop for.
The latest consoles run AMD Zen CPUs, very similar to those found in most gaming PCs.
IIRC GTA V had basically no issues at launch. RDR2 had some crashing issues, but otherwise it's like one of the best optimized and most scalable PC ports I've ever seen.
As someone who back in 2010s up to 2016 regularly visits gtaforums to discuss modding and waiting for gta v pc release, I can say no. People back in 2015 launch had issues ranging from simply unable to launch, infinite loading screen, close to the desktop, to missing graphical effects (even after driver update).
In term of recent gta release, gta v definitely is more optimized in a sense but if your information based on something like Digital Foundry retrospective videos... Well idk, since they tested it with "optimized" setting and not in launch version.
When was the last major Rockstar release that came out simultaneously on consoles and PC? Max Payne 3 maybe? I assume it will be console exclusive and then PC a year later.