I can honestly say that I have never been inconvenienced even slightly by an application that takes up between 0 and 500mb on disk.

If it starts to get into the multi-GB range it can hurt to download, but below that it's all identical to me. If it means that i don't need to run a specific version of a library installed globally on my machine, and i don't need to manage a big chain of dependencies myself, and it runs on multiple platforms, i don't care if it's 1mb or 500mb, and i don't care how many copies of it I'm running.

My ssd has 60gb remaining on it after a few years of daily use and i haven't needed to worry about program space yet.

My iTerm process is using about 170mb of memory, though that's admittedly less than half of what Slack is using. Big picture, with 8gb of ram, this is not a problem.

I have 6 terminals open right now and that's my baseline. I often go up to 12-15 terms.

Presumably, multiple tabs in this browser based terminal would only use one chrome process

Talking about seperate windows here.