I feel like this is legitimately more true than a lot of people think. Say what you want about the average end user, but UX is a HUGE driver with regard to adoption and user uptake. You can have the best of everything else in your application, but if the UX sucks, folks just aren't going to use it
it's the problem with most FOSS app imo. people would like them more if the overall UX was better.
most proprietary apps today have shit UX because of monetisation and all the confirm pop ups for data selling, but anyone will still choose proprietary over Foss because of the abysmal UX Foss has