I’m sure you’re mostly right, but man… for me, trying to understand standard ‘Ainglish’ informed with various Scots / Celtic / Irish / British brogue (and sometimes Australasia brogue) is even harder than understanding certain American backwoods Appalachian dialects. 😵‍💫

For example, what’s that modern show with the two twin, Irish, mobster brothers? (played by a single actor IIRC) I really do need an interpreter for that one, and various other series… oO