There's are some OpenStreetMap-based apps that are worth checking out. Some of them are made for specific purposes, while other are for general navigation. I've tried some of them through the time with various success, though I've still haven't found a favorite to stick with for good. But I believe making the switch is definitely possible and probably worth it!

You can install all the mentioned apps through F-Droid:

• GraphHopper Maps
• OsmAnd+
• Organic Maps (hike/bike)
• Alpi Maps (hike/bike)
• SeaMapDroid (nautical)

Additionally, use Transportr for public transport navigation almost anywhere in the world, and GMaps WV, a restricted WebView wrapper for accessing the web version of Google Maps. Intended for use when OpenStreetMap isn't enough.

I use OSMAND

I can definitely recommend maps.me it's a great app with default offline maps. It was a great tool when traveling abroad without internet

Closest I'd say would be a service like Odysee. Can't really say whether their practices are better than yt or not, but I can at least confirm I've found a few channels I don't wanna sub to on yt also have accounts on Odysee. As to whether or not they made those accounts/channels is a different story.

Peer tube but no one actually makes content for it far as I can tell.

Personally, I can’t imagine what is on YouTub that’s worth watching. I don’t know, I haven’t used it in ages.