Will it come to PC?
Almost certainly. Not at launch, and nobody outside Rockstar knows when — including every site that has given you a date.
The short answer. Rockstar has announced PlayStation 5 and Xbox Series X and S. It has not announced a PC version, has not given a window, and has not ruled one out. Anything you read with a PC date on it is not sourced from Rockstar.
What history says
Rockstar has brought all three of its last major games to PC, and never at the same time as consoles. The gap is the interesting part, and it is not stable:
| Game | Console | PC | Gap |
|---|---|---|---|
| Grand Theft Auto IV | April 2008 | December 2008 | ~8 months |
| Grand Theft Auto V | September 2013 | April 2015 | ~19 months |
| Red Dead Redemption 2 | October 2018 | November 2019 | ~13 months |
Three data points, spread between eight and nineteen months, is not a pattern you can forecast from. It is enough to say that a PC version has always eventually arrived, and never quickly.
Why the wait exists
A console is one machine. Rockstar can profile it, budget every frame against it, and ship. PC is every machine, and a Rockstar open world is exactly the kind of software that finds the edges of all of them. The gap is where that work happens — and where a second launch window gets its own marketing beat.
There is also a commercial reading, and it is not cynical: the console launch is the event. Splitting attention across platforms makes it smaller.
What to do about it
Nothing, yet. There is no PC pre-order to place and no system requirement to plan against, because neither exists. Anyone publishing recommended specs for this game is writing fiction with numbers in it.
When Rockstar says something, it will say it on its own site and on the Newswire, and this page will change the same day. The claims list carries this as an open question, with the date it was last checked.