landscape keyboard changed

Thanks for the suggestion. I checked on that but one-handed typing is turned off. Just for fun I activated right handed typing to see if that changed anything, but it didn't, so I turned it back off. I have spent hours (yes, literally hours) on the phone and in chat with Apple support, and they have no clue about it. I even made an appointment at the Apple Store and they couldn't help either. I've restarted the phone, reset it, did a factory reset and restored...nothing helps. Not sure why my keyboard suddenly changed on Monday morning, but still not able to change it back like it was.

Thanks for the reply. Zoom isn't on. I've wondered if I accidentally turned on some feature, but I have no idea what it could be. It's strange that when I turn my phone from Portrait to Landscape the look of the screen changes. In the past, the screen image and keyboard looked the same, it was just bigger in Landscape mode. Now, in Landscape mode the screen looks totally different (when I reply to a text or an email) and the keyboard is small and the window that I type in to is small. This happened to a friend on the same day it happened to me, but the next day she said it 'changed back' and she didn't know how or why. I appreciate your comment. I wish it had worked. I sent screen shots of the problem to the Apple adviser I chatted with online and they weren't able to help.

All good comments and ideas. Thank you. I looked at Accessibility and couldn't find anything that seemed to apply. The big question to me is why the radical change in screen layout just by turning the phone from Portrait to Landscape. It's difficult for me to type in Portrait mode (clumsy thumbs I suppose) so I have always used Landscape...but now Landscape has an even smaller keyboard. Ugh! You mentioned "mirroring" my screen. I don't know what that is.

Thanks for the info. Good to know, but not the case here.