There should be an open set of standards to allow users to select their search, travel, map, video, mail etc providers. You should get google mail results on bing search, Vimeo results on Google search, your travel bookings on any search engine or chat agent UI you choose.
Obviously we need to solve for all the security and cross border data issues etc etc. But we also need to bake in the UX innovations rather than just go back to the 90’s.