I’m a Mandarin learner and there are some things in Mandarin that feel really intuitive for me, and other things that I really struggle to wrap my head around.
Tones are tricky but when speaking I’ve found I can really rely heavily on context to get me through a lot of it. Culturally Mandarin speakers are pretty forgiving, most of them just seem excited I’m giving it my best shot. Not sure if it’s the same for Japanese speakers.
That tracks with my experience. I visited Japan but knew minimal Japanese (pretty much just 有り難う御座います) and everyone was very friendly and helpful, and seemed pleased the limit of my Japanese was at least something polite.
I feel like one difference is a friendly Mandarin speaker would be less likely to try to correct me if I made a mistake and more likely to try to just interpret what I’m trying to say. I wonder if some of that comes from the possibility of misunderstandings from a tonal language.