Seems a bit hyperbolic. I do front-end development, and upgraded from a 5yr old 13" MBP with 16gb of ram to a 16" M4 Pro with 48gb, and a second lesser M3 Pro for a client. Both are fantastic, and probably the minimum I'd bother trying to work with professionally, anything down to M1 Max would likely be fine, but anything older or with less ram might be too sluggish to be palatable, and it would introduce more friction than necessary. There's not much of a direct time savings to be argued for, but plenty of less obvious pain points that just add up and become irritating when there are better tools one could be working with.