Just tried wikiloc for hiking on my gw4. Good things:

• map works
• some extra data like elevation, remain elevation etc is show

Bad things: Everything else: No turn by turn navigation instructions, neither on the watch no on the app. No elevation profile on phone app, no automatic route adjustment, no route planer, no… basically no nothing. All this is more about phone app than the watch app, but still.

Looking forward when komoot improved its watch app. My hiking vacation is not far away.