And I pronounce his name [ˈɛrdøːʃ], because I've heard that's how you do it.
But it pains me a little.
It pains me because I like to be correct about spelling and pronunciation; I think it is respectful.
But it is also an effort, people don't hear me right and get self-conscious about their own pronunciation.
And I can't easily type Hungarian accents.
It's the kind of name I'd prefer to copy-paste, if I need to be public, and get wrong if I can get away with it.
I'd let anyone off the hook for not correctly typing or pronouncing Hungarian accents in casual conversation.
Having said that, I always copy-paste names of customers I'm talking to directly when I can't type them.
You would write “Yang” and not “Young” (assuming that’s their name and they didn’t change it to “Young” after migrating), and you would leave out the pinyin vowel markers.
Since many Chinese carry a western name for the convenience of having something westerners can pronounce, that can be a safe fallback.
When I see names with strange accents like ő, I just ignore them. Better that than guessing wrong. Of course if it's a real person you have a relationship with, you'd go to a bit of effort to figure it out.
For example, at https://web.archive.org/web/20051015141515/http://ecp6.jussi... you see he used "Paul Erdös".
The same for his paper at https://web.archive.org/web/20120324221556/http://www.amt.ed... where the mathematics journal's typesetting clearly supports á, ó, and ö.