

Not surprising; it’s far more practical to get information across by switching to a language you both speak fluently. If you ask the other person to help you practice the language, it would change the task from “information” to “training”, and you’d probably have better luck in speaking German if that’s the expressed goal.
Communicate your wants, or you’ll end up with the most efficient route to the end of the interaction. 'Tis the German way.
Yes. If I feel comfortable enough to want to work somewhere during/after an interview, I feel comfortable enough to talk about my challenges as well as my strengths. I spent decades unaware of this part of myself and why I couldn’t function like I was expected to - I don’t want to go back to struggling to pass as “normal” and fail those expectations. I am lucky enough to be able to set different expectations for how I do my job well, now.
I’m in northern Europe, and I don’t think I’ve been discriminated against because of this. I have asked and gotten accommodations for tests during the interview process (more time), which then led to interviews.
I have disclosed my ADHD and received job offers in my last two interviews. My ADHD tells me I can do both jobs, because fun! My experience tells me to pick the one where I can work from home part time.
It much depends on where you are, your field of work and your seniority/experience.