[JohnBooty]

Really depends on what you're doing.

I spend 8-10 hours a day coding on my 2018 MBP (web apps - Postgres and Rails or Python) but almost none of that is really CPU-bound in my case. The meat of my work, the actual coding and iteration, is not limited by the aging CPU.

The one thing that's painfully slow is rebuilding Docker images, but we don't do that too often. Less than once per week.

I actually am upgrading soon, but it is not going to make an amazing difference for me in terms of productivity in my current work.