Docker is terrible on Macs, but I used to run Docker+vscode+Firefox+Brave+Slack+misc. I'd run into issues on my 2015 MBP from time to time, but on the 2019 models it was fine.

gulp.watch would often eat an entire core, and stuff in Docker ran slower than on Linux, but my laptop could keep up. vscode didn't lag and Firefox ran just fine—all with 5+ Docker containers running.