Just to note there are 7 methods to switch views in Vanilla Blender.
1. View Menu->Viewpoint
2. The navigation gizmo. The thing on the right hand side of the viewport with the colored axis. Each sphere on the ends of the axis corresponds to a view. The camera icon is the camera view.
3. The tilde key pie menu. The real power to using pie menus in Blender is holding the key down and drag until option is highlighted and let go of the key to make the selection instead of having to go all the way and click on the option. Note: I turn on pie on drag(Just check the box) and remap it to the D key. This was a change that was planned by the developers, but in the community there was more votes to leave it on the tilde key.
4. Thru the addon 3D Navigation. This gives you the views as buttons on the N-panel.(Technically called the sidebar)
5. Thru the addon 3D Viewport Pie Menus. The hotkey is alt+Q. This includes a lot more options than the tilde key.
6. The Numpad of course.
7. This last one doesn’t have an option for the camera view. So you would need to use one of the other 6 for camera view. This is the Alt+Middle Mouse button drag. The direction you drag will go to the view relative to your current view. This can be change in preferences keymap under 3D View options you can change Alt Middle mouse drag from relative to Absolute. I prefer absolute. It is the same view directions as the pie menu. Up is top. Down is bottom. Left is left side. Right is right side. Diagonal up left is Front. Diagonal up right is Back.