Duplicati runs om Windows AFAIK.

Don't use it for hiking but seem to remember it coming up in that context: Open Street Maps. AFAIK it has PC apps, android apps (osmand, organic maps etc.) and web. I use osmand a lot for maps, POI's and navigation. Organic maps is great too. Simpler and more polished.

Sorry, but definitely not true.

Source: See my comment regarding the majority of danish municipalities using Linux. No problem for the users or the people doing the sysadmin work.

Good question, but no 🙂

OS2 is a organization which coordinate software development for the participating municipalities and companies which sign up for delivering FOSS. I think OS2 stand for Open Source Software, but not sure.

More about OS2 here: https://www.os2.eu/in-english

Maybe not quite on the spot, but a Storage Share (hosted nextcloud) from Hetzner might be an option.

Bonus features and info: You can also share other files, location, calendars, contacts etc. They have a compliant data protection agreement, and are fully GDPR compliant.

Hetzner Storage Share: https://www.hetzner.com/storage/storage-share

Firefox and VLC on Windows for years, which just worked. Later XBMC/Kodi and fileserver which where s... on windows but, again, just worked on Linux. When Windows later on kept nagging for something I migrated to 100% Open Source and have been a happy camper ever since!

Maybe not what you're looking for but using Kodi on Pi and laptops as Mediecenter.

I applaud Linux on as many laptops as possible. But given Microsoft's history of EEE, bad security practices and multiple and on going privacy violations I would really not recommend using anything Microsoft. If you must use fx Surface I would recommend buying a used one. Or better yet a used Thinkpad or similar enterprise laptop used.

+1 Organic Maps and also Osmand. Both are on F-droid app store.

I know I am way out there. But is it possible that actual human interaction could have a positive effect on loneliness?

Have checked PineTime, and seriously considered it. But as you said, and I remember, it fell short on features. Will check Bangle.js!

I used Read You from f-droid app-store and was happy with it. No commercials and FOSS. Switched to Nextcloud News for centralized RSS feeds from my Nextcloud.