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The only sane tab behaviour is open to the right of current and close to immediate left. It means that open+close returns you to where you were and the only option that keeps large volume manageable. That it's not in common use shows how much cargo-culting goes into UI design.

Making it easy for people to change their UI is one of the things that LLMs ought to be really good at. In this case, I'd likely just generate a browser extension with the correct behaviour — but this would be built-in if product managers were more interested in people and less in nudging.

A brower extension...for this?

i am not an expert in extensions by any means but afaik an extension cannot affect the native browser tabs or fully replace it etc...

On Firefox they can do that enough that you can get sane behaviour.