Yup. The best bet is the handlebar bag with clear pouch and a cheap $100 android phone with offline google maps. I am personally using a Samsung Galaxy which I bought it from fb marketplace.
Fortnine recently recommended grabbing a used Sonim phone (https://www.sonimtech.com/) to use as a motorcycle mounted phone. They're designed for EMS workers, so they're waterproof and have mappable physical buttons so you can use key functions with gloves on.
I was thinking of grabbing a cheap phone for this, but still attached to the handlebars. If it's sunny, the phone would probably get too hot and shut off in a pouch, especially since my motorbike has a big enough fairing that mounting the pouch in the wind wouldn't be practical.