Yes, stay away from car/truck oils that have friction modifiers.
Stick with a xW40 JASO labelled oil from a reputable maker of high grade oils with specs you can find and compare.
The word "synthetic" is so badly corrupted nowadays that as a word, it means little on its own.
Be it 0W, 5W, or 10W you'll be fine.
Remember, cold 0W, 5W and 10W oils are all way thicker at startup temp than 40 weight oil is heated up to operating temp.
I'd avoid any xW30.
I saw 213 F oil temp on the filter body during my 919 dyno runs, so the oil was even hotter, probably in the 220 F zone.
I use Shell Rotella T6 5W40 in the 919.
I used to use Mobil1 Motorcycle 10W40.
I used Motul 300V5X40 in the GSX-R750 track bike, and will also use it in my ancient SOHC CB750 whenever I get it back on the road.