Hi,
many ways…
Right click on titlte bar of an app’ or [ Alt ] + [ space ] → move to workspace.
Keyboard shortcut → [ Ctrl ] + [ Shift ] + [ ← or → ] → moves app’ window to another workspace ( animation is a bit counter intuitive. )
Add a « workspace switcher » to a panel ( there are at least 2 applets on offer, I prefer Workspace Switcher over Visual Space but see what fits for you )
And probably other ways I’m not aware 