Tiling window managers feel hostile for about an hour, then they feel obvious. The trick is to learn four keys before touching the config file: focus, move, split and close.
Resist the urge to copy an entire dotfiles repository on day one. You will inherit somebody else keybindings and none of their reasons.
Most status bars are a hobby, not a tool. Battery, network state, and the current workspace cover almost every real decision you make during a working day.
Everything else belongs in a command you run when you actually care.
Screen sharing under Wayland needs a portal running and a compositor that speaks to it. When sharing shows a black rectangle, the portal is usually missing rather than misconfigured.
Check that the portal service is running for your session before changing anything else.