Nahh PC and it's continued support for 5400 RPM drives is the lead platform.I don't think so. Most of the multiplatforms are also on PC so if anything it would be that or the Xbox consoles as the leading platform maybe?
Maybe the PS5 is just easier to develop for, like that video where the dev ported his code over and it just ran first try. Sony's done a great job at that end.
Both consoles 3rd party games will be held back due to this.