Typically open systems take a long time to catch up with a proprietary option in a new market.

But once the open system catches up, it never falls behind again.

The only reason to use the proprietary option is quality; all else equal everyone else in the ecosystem would rather go with the open option.

Less lock in

More competition on price and reliability

The option that everyone else will use too, a natural schelling point.

You want to use the option everyone else will use because it's the one most likely to get investment to improve.