I am interested in hearing other opinions, but I personally do not care about exclusivity. I can download any store front application (Steam, Epic, GoG, Uplay, etc) for free, so the only inconvenience is having another app. Compare this to the days of console exclusives, and it's almost a non-issue. Outside of couch coop, I have no familiarity with Xbox exclusives like Gears or Halo because I could never afford more then one console until this current generation.
My first experience with the Epic store was to get Satisfactory. And while it was annoying not being able to have it on steam, it really became a non-issue since everyone I play with uses Discord. Again, I am curious to hear other opinions on this because I really do not see the big deal in my experience.