That’s a fair question. It’s been available for PC gamers to purchase since October-ish 2018 at console level pricing (because it’s a Play Anywhere title). Checking back on the original FH4 topic, Standard Edition at launch was R999. It’s now available on the MS/XB Store normally for R1099 (but on a 50% sale for the next week at R550.)
It’s been on sale a number of times since its release. It’s also been included in all the Game Pass subscriptions on either Console or PC since its launch. So I image the majority of players who wanted the game already have it in some form.
That said, other recentish Xbox Game Studios titles like Sea of Thieves and Gears 5 have gone onto Steam at significantly lower prices than they are on the XB Store. I think the Steam versions are not Play Anywhere enabled (so you can’t buy the Steam edition and use it on your Xbox console like you can if you buy it from the Xbox Store). AIso think there’s some measure of regional pricing at play on the Steam storefront, which benefits us a lot as well. They’re both currently selling on Steam for R219, which is amongst the lowest prices for the game globally.
If FH4 goes onto Steam at anything like R219, and you don’t have access to it from a previous purchase or through Game Pass, it would be an instabuy with ridiculously good gaming value.