There's no GTA 6 PC version on launch day, and Rockstar hasn't given a date.
The reports
A recent report says Rockstar is targeting early 2027 for PC. That would be Rockstar's fastest PC port yet: GTA 5 took 19 months and Red Dead Redemption 2 took 13.
Our take
A PC version is almost certain eventually. Treat any date as a rumor until Rockstar announces it. Full breakdown: GTA 6 on PC.