The Gnome designers have apparently discovered that taskbars are attention vampires and a detriment to users.
1. With mouse -> Up left corner (a.k.a hot corner) -> Click on the window I want.
2. With keyboard -> Alt + Tab -> Select the window I want.
I find that quite straight forward. Again, it's a personal thing.
You install a distro that includes Gnome. Did your distro choose not to package a taskbar extension? That’s a good hint your distro is not intended to be an end user distro.
99% of Gnome users have a taskbar.
1. With mouse -> Up left corner (a.k.a hot corner) -> Click on the window I want.
2. With keyboard -> Alt + Tab -> Select the window I want.
I find that quite straight forward. Again, it's a personal thing.