Google is partnering with Samsung because that’s the only way it can beat Apple

The big things keeping me from leaving my life-long Android dedication is that Apple doesn't allow sideloading apps, browsers other than Safari and Safari reskins, any type of home screen customization, and messaging with RCS.

3 out of 4 of those issues are very likely to be resolved this year... so there's little reason to stick with Google, imo, given how shit their services have become over the last 5 years.

well why don’t I just buy an iPhone then for longer os support

I've never owned an iPhone so I'm not too up to date on this, but a 30 second search (meaning I could be wrong), says:

"But it is around 5-6 years based on precedence. The iPhone 6s probably had its last major software update with iOS 14(2020)." https://discussions.apple.com/thread/252455935

I can't speak on Samsung, but Google is getting much better with updates. Hopefully Samsung follows suit. The Pixel 6 and 7 get 5 years, and the Pixel 8 getting 7 years. https://support.google.com/pixelphone/answer/4457705

Edit: to me, the Pixel is one of the best phone lines, especially when you consider GrapheneOS support and alternative OS in general support. However, I think Google falls way short on marketing, which is why they never really took off.