If you just add up memory usage for subprocesses you are likely to over count due to shared memory. The number you typically want to add up in Linux is ‘proportional set size’ which is, I think, the sum over every page of the process’s memory of page_size / number of processes which can access the page. I don’t know what happens if you mmap some physical memory twice (I think some newish Java GC does this).

I would assume bruised_blood, but I can't [easily] find the original, so I posted that.

> The slack client is just written poorly.

Why yes, Slack does seem to be written poorly - just as poorly as every other web app that I use including VS Code, Discord, MS Teams, etc..

Maybe the Slack developers are just stupid, uneducated, malicious, poorly managed, or ambivalent (or all of the above) but the platform does to be conducive to creating clunky and bloated software.