Maybe, though I'm fairly certain every PC comes with a default browser. Like Edge on Windows, or Safari on Apple, or the slow decay of your limited mortal form on this plane of existence that you'll never get back on Linux.
If you or someone else hasn't uninstalled it, it's probably still there. Though, downloading another browser like chrome or something is as easy as you would download a game here, if that helps?
Though if you are worried about breaking something by checking a 2nd browser, you could try toggling off browser extensions to see if that helps? I don't recall if firefox has a safe mode equivalent or not.