Why should I use a piece of software that's controlled by a corporate entity in Russia?

I just adb installed the SmartTube APK from my laptop over the network

When did you try it out? It got many updates, maybe try it again?

Does F-Droid even have an Android TV client?

Champagne Piracy Wiki has a Non-Piracy section

I think I've even seen Filelight on the Microsoft Store once

Since you said you use NewPipe on a TV, I assume it's some sort of Android TV? Why don't you just use SmartTube?

I agree, i2pd is so much better than the legacy Java client, it should really become the default client for I2P.

Currently, yes. But they are working on they're own notification systems (probably something based on WebSocket, similar to what Signal does), hopefully it will also be compatible with UnifiedPush. There's a feature request for this on the Proton user feedback tracker: https://protonmail.uservoice.com/forums/284483-proton-mail/suggestions/47423924-support-unifiedpush-for-android-notifications

Yes, please. I have no idea why we still send weapons to countries like Saudi Arabia.

I got a used unit for much cheaper from the place I previously worked at. If I had to spend 5K on one, I probably wouldn't use it either.

Probably won't be that useful for me, since I use Linux most of the time, but I'm thinking about new Linux users. If they could already start using all the KDE applications on Windows, the learning curve after switching to Linux would be much lower. I've also seen other KDE apps for Windows and macOS before, but had no idea this would also work with Dolphin.