What is the #1 Best Selling PS5 Game?

[Signalstar]

GTA VI is releasing in a matter of weeks. Without a doubt it will become the best selling PS5 title in short order. But what game will it be taking the top spot from exactly?

Do we know what PS5 game is currently the best selling title on the console 6 years into its lifespan. With the shift to digital sales and less transparency on sales figures is there a definitive answer on which game is the current number one?

Many of the PS5's most high profile titles being multiplatform, even some published by Sony themselves, further obfuscates the sales figures.

If I had to guess I would say GTA V is currently the top selling PS5 game, seeing as that game has continued to sell extremely well in recent years. But even that is tricky because the game was offered free to PS5 owners for some time back in 2021. So those copies should not count as "sold". Also the GTA V Online has been offered for sale separately, so how should those sales be counted?

Other potential top sellers could be Spider-Man 2 or GOW Ragnarok but those don't have updated sales data for the PS5 version only as far as I am aware.

Maybe a FIFA/EA Sports FC title or one of the COD games?

Of course the true answer is Astro's Playroom, but that does not really count because it is pre-installed.

Do we know for sure or can anyone guess?