1. There are no one such "Microsoft Engineer" replies to queries from consumers, those replying are just experienced user support personnel, Microsoft Engineers will not speak or troubleshoot consumer problems. They have better tasks in Microsoft departments.
2. For email to mobile related issue, try using Edge or Chrome for mobile application, else we just have to stick with computer for forum membership activation.
3. I am unsure which query are you referring about the 24" and 15" screens .. if an application can work on 14" laptop screen, it should work properly on desktop 15" as well.
4. For HSBC are you referring to this? if yes, Right Click on the shortcut -> Properties -> in Compatibility tab choose the lower version of Windows which previously worked properly before. If not and you're referring to web based HSBC banking, then you may run it on legacy Internet Explorer which I have guided in this topic
https://www.windows11forums.com/threads/access-legacy-internet-explorer-in-windows-11-tutorial.1440/
View attachment 1066
Cheers !

My reply/
1. So the experienced helper was not a software engineer. OK but he sounded like it during th elong conversation I had with him. I have been programing computers since before Microft went public, using Apple machines and haveno knowledge of Microsoft structure. By the wayy he spoke he appeard to be an engineer. Matters not about his employment status.
Emails. I have to use Gmail. Clever people manage to send me a notification that show on my screen and can be copied and pasted into the email that I am readingrecter wide collumns at the time. Its not rocket science.
screen size. I agree that an application shpuld alwayw work on all monitors regardless of size. Mine always do but I dont attempt to put 5 character words into 3 character wide columns.
Thanks for the tip about compatibily which I will look at from an interest point of view. Is this in windows settings or HSBC settings?
They were totally unaware of this point when i contacted them but were posibly just center hens working from a script The app that they ran on windows 10 bears little similatity to their current widows 11 effort.
It should not need any input from a bank customer to get their app to work. Matters not now as I have downloaded the app on my Android phone and its adifferent one written by a competent programer. Even the txt fits whichever phone I run it on. They even appear to have queried my broswer, got my text size and made it fit my screen, something that not many web writers know how to do. I am now retired at the age of 80 having written code for companies large and small. so I know how to analise a web site or O,S. The curent update coming to windows users screens this month contains a large number of updates and bug fixes that my wife would have founa ages ago. She used to teach computing.
But when she tested updates and progams, she had no idea which keys to press unlike the Windows testers who were all geeks (no offence meant as I'm a geek despite my degree in computer programming'}
if there are any typos in this post its because i just went blind in one eye.
Have fun. Its only a game really and not worth getting upset about. Just had to press ctrl - 6 times to find the post reply tab.