Drop those apostrophes - a web developer is a completely valid, skilled profession.
Web apps unequivocally compete with native apps, that is a fact. I prefer the Slack web client to the native version. I use Google Docs instead of Microsoft Word. I use Google Drive, iCloud, Google Photos etc. instead of my own harddrive.
To think that web apps don't compete with native apps is simply untrue.
Slack doesn't have a native version, does it? They have a desktop client, but that's just the web version wrapped inside Electron.
A web developer, doing what they know what to do on the web, is a legitimate developer.
A web "developer" that only knows webdev, doesn't have the skill or will to learn anything else but webdev, insists on splurging web crap as "apps" outside of the web—that's, to me, is not legitimate, and "dev" worthy.