Are the Ubuntu ads in the room with us right now? The only thing I remember is apt telling you about Ubuntu Pro. At that point Plasma is adware too for advertising their donation page.
Please don't let this community get flooded with this low quality garbage.
From my experience, Brave worked better on mobile than Firefox, so I stick to it. On PC I'm however using Firefox + uBlock.
Ah yes. Complaining about the minimal version of the distro not being minimal due to a 2.6mb package. Canonical is a true monster.