What’s the roof load limit for your vehicle? Even if I fancied lifting an eMTB up to roof height (which I don’t) and holding it there whilst I secured it I think I’d find the anxiety over it falling off too much to take.
I also have a 2019 Levo Comp and I wouldn’t roof mount it. There‘s a number of threads on here discussing options for wheel & battery removal to reduce weight but inevitably comes down to the alternatives, e.g. tow bar rack or inside a van/car.
I have occasionally transported my ebike(s) on Thule 565 thruride. Without front wheel and battery, bike (Levo and Kona Remote) is under 20kg limit. But the 565 is a bit short and size XL bikes barely fit. It's also a pain to mount the bike alone.
As others said, look for alternatives to roof mount.