Unable to download updates from App Store on MacBook Air

I just spent an hour this afternoon with Apple Support. Ryan was great. Long story— it appears that I may have non Apple software that’s causing the problem. The recommendation was that I reset my MacBook Air and then restore my documents and Apple apps. The many other applications I have need to be evaluated one by one and downloaded a new or not. Sounds like fun.

I’m up to date. Sequoia 15.2.

Actually, it says the app, for example Pages, cannot be installed. I can download but not install any of my 17 apps in the App Store Updates.

Thanks to Fred and Kaz for their kind assistance.