[endgame]

I agree. The thing with fountain pens that many sibling commenters miss is that they run the ink so much more smoothly, which means you can use much less force when guiding the pen. It's not just pining for the old ways but that the writing feels completely different with a different class of tool.

I spent a bunch of time working through https://www.briem.net/free-books/handwriting-repair and am really satisfied with the improvement.

[varjag]

With a really good ballpoint there's no difference. Saying this as someone who had to use fountain pens throughout the school. I now been using UB-157 for years and it is entirely effortless.

[NoGravitas]

Depends what you mean by ballpoint. For a liquid ink rollerball, that's true or very close. For a gel ink pen, or an oil-based standard ballpoint, that's very much not true. Conventional ballpoints require much more pressure than a rollerball (like the UB-157) or a fountain pen. Gel pens are in-between.