You're often still OK with v5.0 or 6.0 and above these days but it varies by individual device (for example with a popular app like Facebook, support varies by device and version, and as such they don't even list a specific minimum requirement). One thing app developers look at is market share and 4.X is around 4%, 5.X is around 9%, and it goes up from there with the most being around 30% with 9.X. You have a LONG way to go before you run into app issues on your Pixel 2. The battery will need replacement before you have any significant problems with app support. No reason it should slow down significantly either unless certain resource-hungry apps get specifically optimized for certain newer hardware.This quote is hidden because you are ignoring this member. Show Quote