Fluent Readerβ β β ββA simple, no-nonsense, modern-looking RSS/Atom newsfeed reader for Windows, Mac and Linux. Optionally sync with multiple services, but Iβve had issues with Nextcloud.
Jellyfinβ β β β β Great for playing music across my local network, doesnβt phone home to a cloud or try to upsell subscriptions.
KeePass Password Managersβ β β β β KeePassXC, its browser extension, and KeePass2Android are a nice, clean set of apps to manage your passwords on your OWN desktop and mobile devices, auto-fill websites and apps, and sync over your own server or cloud provider.
Manyverseβ β β β βTakes the pain out of setting up and running SSB. Unfortunately it doesnβt overcome SSBβs inherent challenges of discovery, data size or multiple devices. (So far?)
RSS Guardβ β β β βA solid cross-platform feed reader that runs on Windows, Mac and Linux. Extremely capable and customizable. Syncs with multiple services.
Thunderbird (Email and Calendar)β β β β β Stable, capable desktop email application, works well with multiple accounts including Gmail, Nextcloud, easy to set up and use but with advanced settings when you need them. FLOSS.
Windows 10 Mail and Calendarβ β β ββNot a bad email client. Snappy, works with multiple accounts. Some issues with Nextcloud calendar and contacts. Of course itβs being discontinued.
Wine and Crossoverβ β β β βTHE major compatibility tool for Windows apps on Linux or macOS, including SteamOS. And a commercial distribution with installers and support.