Flatpak and AppImage are trying to make that easier, since they both work the same on pretty much any distro, but not everything is packaged that way yet.
Flatpak is closer to the typical package manager model, where you install things from a graphical store or the command line, while AppImages are self-contained binaries that you download from the developer and run as-is without installing.
Snaps also exist, but they don’t work well outside of Ubuntu and its descendants…