If you're looking to upgrade your computer, you have an important choice to make.
, then you’re promised at least three years of service support from the time you buy it, which means that even if you buy one of the Intel-based Macs that Apple currently offers, you won’t be stranded without support for a while. However, that only applies to accidental repair damage and priority tech support. You can keep using your Mac long after that, often with minimal issues. Furthermore, Apple provides service and parts for Macs for up to five years after they’ve stopped being sold.
Updates from major developers like Adobe have gone shockingly well. It's been a little over a year since the very first M1 laptop arrived, and alreadysupport the M1 processors, including Photoshop, Premiere Pro, Lightroom, and a beta version of After Effects. Likewise, Microsoft's Office suite supports universal MacOS binaries that will automatically load the right version of the app, whether you're on Intel or an M1.
It’s still possible for there to be bugs if you use a niche-yet-critical app for work. If that's your situation, have a look online on various forums to see if anyone else using that software has run into issues on the M1 platform. Most people won't need to buy an Intel Mac just to maintain backward compatibility.