Sony has a big infrastructure and internal resources focused in hardware development. Their increase in hardware prices are an evidence they are committed to be hardware makers, as their hardware helps them to make their software and services more popular and profitable. If you own a PC there is no point in subscribing for a PS Plus for example
That's why they are moving away from lower prices and instead are selling hardware at profit, just like Nintendo
I think with exception of Spider Man most of their single players first parties sells poorly on PCs (compared to PS5), PC sales are not necessary for Sony games to break even, or even to turn into profit. They are more advertising of Sonys brand and games, if anything. Sony is doing that because they probably already exhausted the pool of consumers on Playstation userbase.
During PS4 days Sony was almost giving away their first party games for free, anyone who was interested in Spider Man, Horizon or Uncharted could get them for dirty cheap, so Sony likely figured out if they want their IPs to keep growing there is no other way other than releasing them on PCs
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