There is a drawing tool that will work with pen tablets. It's not perfect, but it, like a lot of the features, is a start. The end result of the tool is a simplified bezier curve. There is a tolerance slider that lets you control how much smoothing is used in generating the end result of the drawing. I couldn't get it tight enough for finished character drawings done only with the pen, but you can go in and edit the Beziers with the regular Bezier tools.

It does work well enough that you can knock out a rough and then clean it up. The real strength of this will to allow you to come in and rig the drawing.

There is also a "cell animation" feature that lets you draw individual frames with onion skinning. Again, very basic, but a start.

I haven't used these features in production, so I can't really say how well they work under stress. But they've been very evocative of what might be possible as the tool develops.

Thanks! I might take a look at it then. Maybe it'll be the right tool to let me idly fiddle around for the fun of it without things like "having flashbacks to working under one of the worst people in animation back in the 00s" around the tool. :)