This whole conversation made me tired. Let's make things more interesting.
*ahem*
How high are the odds that Game Builder Garage's first-week sales in Japan are higher than Final Fantasy VII Remake Intergrade, Guilty Gear Strive (PS4 + PS5) and Ratchet & Clank: Rift Apart combined?
Bow down to your messiah everyone :P
More serious comment: Game Builder Garage went quite higher than what I was expecting and even Ratchet & Clank sold slightly more than what I was expecting; meanwhile, FFVIIR Intergrade did more or less what I was expecting.
Now, bringing back the discussion about the state of the PS ecosystem (which is one of the most important topics right now looking at the way the market is developing), I'd say that Integrade can't be taken as a good indicator of its health: don't forget how customers who already bought the original release last year could upgrade to the PS5 version for free and then buy the Yuffie DLC separately. This means that its retail sales aren't nearly as representative of its actual demand as usual. Ratchet is low but it's not unusual for the current state of the franchise. Guilty Gear Strive, on the other hand...this is how much Xrd: Sign and its re-releases sold during their debut weeks (Famitsu)
04./00. [PS3] Guilty Gear Xrd: Sign <FTG> (Arc System Works) {2014.12.04} (¥7.538) - 34.068 / NEW <60-80%>
16./00. [PS4] Guilty Gear Xrd: Sign # <FTG> (Arc System Works) {2014.12.04} (¥7.538) - 13.967 / NEW <40-60%>
05./00. [PS4] Guilty Gear Xrd: Revelator # <FTG> (Arc System Works) {2016.05.26} (¥6.800) - 17.829 / NEW
08./00. [PS3] Guilty Gear Xrd: Revelator # <FTG> (Arc System Works) {2016.05.26} (¥6.800) - 9.385 / NEW
04./00. [PS4] Guilty Gear Xrd: Rev 2 <FTG> (Arc System Works) {2017.05.25} (¥4.800) - 13.177 / NEW <60-80%>
08./00. [PS4] Guilty Gear: Strive # <FTG> (Arc System Works) {2021.06.11} (¥7.800) - 11.722 / NEW
It's an important decrease and while the PS5 SKU sales are still missing for a fairer comparison... if Amazon.co.jp rankings, Comgnet and Tsutaya Top 20s represent the overall market well enough, there won't be a drastic difference in the end.