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Ah. Best of both worlds are Schwalbe Marathon in 25!
As the German I am I once bought them for my fixed gear.
It was devastating. From pinching 5 (?) tubes because they are basically more tire than space for air.
Riding them was the worst ever.
I think someone described them as akin to having a bag of walnuts on your rims. Which is pretty accurate.
Sold them one week later.
If you really hate someone, give them a bike with Schwalbe Marathon unplattbar in 25.
Even with the fixed gear the commute was considerably faster than the fat slicks. And I was doing a fair distance, every day. Only difference being 1 or 2 kg more of bike.
Still I was happy with the big tyres, more wet grip, better against potholes, tubeless worked well enough and gravel capabilities. But faster they were not