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.
As the other commenter said it’s about the hardware really. I tested it out on a really old device first to make sure it actually worked - it did but at a glacially slow pace. The new box is pretty snappy though!