Switching to Sailfish (Jolla C2) from iPhone - will Garmin connectivity work?

I switched from an iphone 3Gs to Jolla I. Long time ago. Was charmed by Sailfish from the start but struggled a lot with it, so when Jolla changed to Sony I bought an ipadmini cellular. That I still use as satnav without sim. In the meantime Sailfish improved so much on my Xperia Xa2plus that I use it every day. Fortunately Dutch devs have made nice local apps. Yet I still need a second device. Bank app works, but not Threema and not MagicEarth. The device is getting old, cardslot broken and hardly any storage left. Sailfish is elegant and intuitive, but you will miss features. However you are more free than with Apple’s control.