Honestly, as someone who went to the parks once a year for a week for 6 years, less than most here, I find pre shows enhance the experience for me a bit. Not that need filler for my day but sometimes they’re fun and entertaining (Minions to me, sorry lol), interactive (Gringotts), and they make the line go by waaaaayy faster. It enhances the experiences and gets you more pumped up, works for me mostly every time.
To be fair other than the AR goggles fitting and showing people how they work idk what kind of pre show would be needed frankly for a Mario Kart ride.