I use ad blockers and open source privacy focused software whenever I can but occasionally I have to use computers that don't belong to me or an older phone where my usual applications aren't installed and seeing all the advertisements just feels dirty and dystopian.
I think the worst ads are the text to speech ones that say "Download this app today". The unblinking energenic people saying you can make a living at home are probably a close second.
I only see ads when I use YouTube on my phone, but my god the “humor” is terrible. Especially those “aren’t we weird and kooky?” Liberty Mutual ads, not one of which is remotely funny.
They aren’t creating awareness of their brand, so much as they are making people associate their brand with being pissed off. Looking at you Liberty.