How much better or worse will Switch 2's 3rd Party Support be?

[Slownenberg]

Expect to see much more third party support for big games on Switch 2 as compared to Switch.

After the Wii U, third parties were not starting working on games when Switch came out, so it took years before Switch starting getting even some major third party games, and despite Switch's popularity third parties were extremely slow to decide to start supporting it so support barely picked up throughout the Switch's life. With Switch 2 there are probably numerous big third party games already in development or being ported over as we speak. Plus Microsoft keeps signaling they are essentially starting to go third party and we should see them supporting Switch 2 with some games.

Also Switch 2 should be a bit more capable of handling current console games than Switch was for last gen console games, and add to that likely a bunch of PS4/XB1 ports will be coming Switch 2's way as well, which of course includes current gen games since many console games the past few years were cross gen.

I wouldn't be surprised if within the first two years Switch 2 gets more AAA third party support than Switch had in its entire lifetime.