Well, sorry but look at the methodology on this. The study the post leans on did not study learning. 36 adults went around copying familiar words, and their "typing" is key presses using one index finger (!).

I'm afraid this one's close to going down the replication crisis whirlpool. According to Sol:

"Direct replications found no reliable learning advantage, while a 2024 meta-analysis found only a *small* handwriting benefit but a far larger typing advantage in information captured."

Typed Versus Handwritten Lecture Notes and College Student Achievement: A Meta-Analysis” by Abraham E. Flanigan and colleagues, published in Educational Psychology Review on July 12, 2024