Not bothering with the Japanese market anymore. Without 3rd party developers releasing their popular series on the PS5 sales would be competing with the XS for last spot now.
You can see it very well with Software sales, afaik the ratio is still below 1, as in less than 1 game per console.
Why do you think that Japanese companies are going to stop putting their games on Playstation? I haven't seen that any indication that big companies like Square-Enix, Sega, Koei-Tecmo, Bandai Namco or Capcom are not going to release their games on PS5.