Siri doesn’t speak various English dialects and can’t cope with say Glaswegian as lampooned in various YouTube videos iirc
Yes she/he does. Open Settings, navigate to ‘Siri and search’. Under ‘ask siri’, select ‘language’ although admittedly, Scottish English is not a specific option... UK is closest.
I have come across various comedy sketches that suggest Glaswegian is hard for speech recognition. I get that it must be a challenge, as a Glaswegian trait is to not only add accents, but also to string words together, winaegapsinamong.
But speaking as a native Glaswegian myself, proud of my accent that many dim Southerners have always failed to comprehend, Siri does very well indeed with my requests.