me_irl

I looked up aphantasia, and according to Wikipedia, it's someone who can't mentally visualise something.

Yep. I have that as well as no inner monologue!

While many “hear” the words in their mind when reading, people with anendophasia can process text more directly, grasping the meaning without the mediation of an internal voice.

That quote jumped out at me from the link in your post. I've been learning Spanish (slowly) for the last few years, and that really matches with how I've learned it. I've often described language as "sitting on top of" these mental concepts I have for things. I access the "concept" first and then find the word for it only if I need it. And learning Spanish hasn't been about learning the English equivalent words, it's been about attaching Spanish to my existing concept network. I translate Spanish to English by going back to the concepts and then finding the English words.