I use Krita, but I miss Paint.NET

It’s lighter, simpler, and faster with a much more intuitive UX. for basic image manipulation tasks it’s awesome.

For creation of art I’d use Krita, it is more feature complete. But if Paint.NET appeared on Linux, I’d use it in a heartbeat.

Paint.NET is closer to Gimp, but usable.

I can see that. I wish Pixelmator (before it got bought up by Apple) had been ported over to Linux. That's been the closest lightweight super-intuitive alternative to Paint.net I've ever messed around with.