I made a similar post before about 2.0 mm lead holders. They were mainly designed for drafting work at the drafting table, so they aren’t really ideal for heavy writing or drawing.
The occasional lead slipping back can be quite frustrating, especially if you naturally apply more pressure while writing or sketching.
For more practical everyday use, a 2.0 mm model with a controlled lead advance mechanism would be a much better choice. The 2.0 mm format has a unique pencil-like writing and drawing feel that smaller lead sizes simply can’t replace.