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.
Ads nowadays are little more than psychological assault and it can’t be healthy to be exposed to it regularly. My Home Ec teacher back in the day had a whole unit about the different manipulations present in advertisements and it was really enlightening and upsetting. Modern advertising should be banned or severely regulated.