Its the first time really that the consoles haven’t actually differed that much and been backwards compatible.

Like yeah the ps2 could play ps1 games but the jump in graphics was so massive that no developer was making cross platform games. Ps3 was another generational leap but also changed hardware a lot making backwards compat not really a thing and same for ps4.

Now ps4 and 5 are basically the same console developers stand very little to lose releasing their game on both platforms. Making an exclusive for the newer console which sold pretty poorly on both sides with still massive previous gen active user bases you’d basically be shooting yourself in the foot making a current gen only game.

As a business I’d want my game to cover as many platforms as possible so the ps4 or switch is gonna be the base target depending on what I would be making.