If you google for stats on the average size of webpages these days, you can see a bunch of studies people have done which show the average file size of website

If you google for stats on the average size of webpages these days, you can see a bunch of studies people have done which show the average file size of website page loads is increasing. Images are the biggest offender, but JS bloat is a significant factor as well. FWIW this is generally common knowledge within the webdev community. People debate whether or not it's a problem, not whether or not it's happening.