I once looked at Zendesk (the thing that powers most of those little customer support chat buttons on the bottom right of web pages), I was appalled at the size

I once looked at Zendesk (the thing that powers most of those little customer support chat buttons on the bottom right of web pages), I was appalled at the size of bloat they push down to the browser. I don't remember exact numbers but I think it was ~2mb gzipped. I couldn't removed it from our app but I at least added a 5 second delay before loading it. Had similar (although not as bad) with the Okta login libraries as well. I eventually created a separate application just for the login page so I wouldn't need to bundle those libs with the main app.