You and me are using different Internets, then. Over in my reality, booking a flight is one of the more annoying experiences ever, due to amount of dark patterns, broken UX, and that's only when it's a direct flight near-term, where the choice boils down to "pay $$$ for minimally humane experience with Big Named Airline, or pay $ for cheap airline experience with the only one cheap airline that services this route".

Booking a hotel when traveling with spouse, or spouse and kids, and therefore having some level of expectations around quality, is a stressful lottery. Almost always some dimension (space, bed type/quality, noise, smell) had been misrepresented on the listing/photos to almost, but not quite, point of a bald-faced lie; without time spent on careful review of listings, all of them. When I travel solo, I don't care, so I don't mind.

Contrast that with shopping for any kind of item, even expensive - UX on some sites may be annoying, but at this point, as long as I confirm the site is legitimate and the listing shows the actual product I want to buy, I can safely drop $$$ and get what I want within advertised delivery time. No worries.