I wrote a blog post about the work we did to make player builds in Unity faster: https://blog.unity.com/technology/accelerating-player-builds-with-incremental-build-pipeline
Accelerating player builds with an incremental build pipeline | Unity Blog

Unity Principal Software Engineer Jonas Echterhoff shares how the team has worked to speed up both the script compilation pipeline and the player build pipeline by making them incremental.

Unity Blog
@jonas hi, a completely sincere, unironic question: I've just upgraded Unity to version 2022.2.0f1 and noticed that Android builds now take a whopping 8-10 minutes (up from 1-2 minutes on version 2021.2.1f1). Would you happen to know what would cause such build time increase (I'm on MacBook Pro with OSX 10.15)?
@goshki I don't know from that info. The blog post has instructions on how to profile your builds, so you can exactly see how much time it takes. Can you try that, and see how the profiles look different, and let me know? If the differences don't make sense, you can then file a bug with repro steps and send me the case id, and I or someone can take a look.
@jonas thanks, I'll take a closer look and get back to you. 🙂