Can't view Xcode app on iPhone SE 3rd

sorry this isnt possible with first party software, if you have an apple silicon mac (bc it has a T2 chip) you can view your iPhone screen but that isnt possible with software by Apple but you could try finding a third party software, making one yourself, or try to host your screen on a web server, keep in mind that if you dont make one yourself, this is all third party software so make sure to trust the developer or company with having access to share your screen on the internet before doing this, one software that i will provide is some remote desktop software like chrome remote desktop, teamviewer, etc. keep in mind that these will only mirror your screen, not extend it, i dont know what your use case is but if you have an ipad and are on macOS Catalina (10.15) or newer and are on iPadOS 13 or newer then you can use Sidecar to extend your display, Sidecar is first party but is only available on iPad, not iPhone so for your iPhone SE 3rd generation, you can use one of the suggestions i provided, or find your own. I hope I answered your question, you can reply if I did not, I will try to answer to the best of my ability, but otherwise have a great day (or rest of your day)!