I work as a platform engineer, code mostly in Go and Python, run VMs and containers as well as some crappy resource-hungry apps like Slack and Signal all day long, and have never felt the need for more RAM on this machine.
YMMV, of course, but 16Gb on an Apple Silicon machine takes you a lot farther than you would imagine. I have co-workers who go by daily with 8Gb M1 machines.