Further to my first response -
I went to a friend’s today. They have a Dell XPS 8960/ Windows 11, bought at the same time as my 8950. My friend has never used the Photos app.
I inserted my sd card in the 8960’s card slot. I got an Autoplay message via a popup in the lower right corner of the screen. It asked “Select to choose what happens with memory cards”. I was offered Photos, Media Suite 16, Windows Media Player, File Explorer, Take No Action.
I selected Photos. Photos opened with a blank window. I removed the sd card, and reinserted it. Nothing happened at all.
I restarted, and reinserted the sd card. A blank Photos window appeared automatically.
This is the same kind of inconsistency I have experienced with my 8950 for the last 3 weeks or so. But in the last 3 weeks it has never performed as it did in the year previous to that – when Photos opened automatically, and it displayed via thumbnails all the photos on the memory card, and I could select All, then Add, then select a target folder, then Import.
In addition, when clicking on a jpg file (default app set to Photos) in File Explorer, Photos simply didn’t open.
On searching the web, it is obvious that Photos, at least on Windows 11, is a problem app. A lot of people are having problems with it, and they are not finding a solution.
So I’m not wasting any more of my time. Even if a solution is found, it may not be permanent. Dell seemed too have found a solution 3 weeks ago, but it didn't last.
For viewing photos, I have activated the old Windows Photo Viewer – which I much prefer to Photos for this purpose. I only used Photos for uploading from a memory card – it worked well for a year. Going forward, I will simply use File Explorer – not as quick and convenient as Photos used to be, but Microsoft doesn’t seem interested in fixing Photos to work properly under Windows 11.