There is a toggle in the project to remove the branding from the code.
Dashboard → Project Settings → Hosting → Publishing Options → Hide Branding from HTML.
This must be done → per Project.
and it seems to only affect the “Generated in Webflow” messages… I don’t remember the exact messages… but it removes it.
You can do it yourself also… simply by cutting the text out and re-saving the files.
Thats the limit of the debranding. The code will still contain Webflow references and classes.
If you want more intense de-branding… you have to do it yourself. I do… not a big issue… but it is a bit irritating.