Why doesn't Apple Arcade have an x to exit games

I just recently purchased an iPhone 15 Plus running iOS 18.3 currently. I’ve been able to play lots of great video games 🎮 when I’ve got a lot of spare time, but I’ve just got 1 major issue. The issue has to do with video games 🎮 that stream in widescreen. When I need to exit those games I find it harder to exit these games especially because the circular physical button that used to exist doesn’t anymore. I don’t have a problem using other apps without a physical button because most of them don’t open in widescreen unless you’re using some type of video editing program and feel the need to preview a video in widescreen before you decide to export it. Is there any chance of that physical button feature ever coming back? Or are there other third party companies that sell hardware made from my model of iPhone 📲 specifically? I just think that the screen size should be increased where you could have some type of touchscreen that looks somewhat like a hardware physical button so that you can exit video game 🎮 apps and other apps similar to Apple Arcade video game apps. This would also be great to help people to prevent themselves from damaging and scratching their screens and extend the life of their phone batteries🔋as well. I also think that it shouldn’t really matter which model that you choose to buy to have an option such as this.