There are - literally, and at the moment of this post - 473 referenced Wordle clones in 118 languages. Among those 473 clones, very few derive from the original Wordle rules or layout.

https://rwmpelstilzchen.gitlab.io/wordles/

Sure you always can. Will it be ruled against them? Its a pretty trivial and not unique site/game.

Copyright? Patent? Registered design?