On Bliss | Meet the Bliss Launcher -/e/OS’ default launcher There is a review of minimalist Launchers, including Bliss here. https://dataoverhaulers.com/best-minimalist-android-launchers/
Note, one nice launcher mentioned is Lawnchair, actually Lawnchair is unmaintained now, but you just need to be sure to search for the current version Lawnchair 2. You know, you can just test one or two without harm. Be aware of Settings > Apps & Notifications > Default Apps. Here, once you have 2 or more launchers installed, you can reset your default launcher.
Gallery app will use Albums you create yourself (as folders) with Files, or some other method.