Well, there are lots of customizations doable (I’m still rocking my .emacs from the 1990’s going through several platforms, Linux→MacOS→Linux, refined over the years with custom functions etc.) but to name a single example:
my keyboard does have a Find key, and I tried mapping isearch-forward to it instead of the default CTRL+S.
That’s trivial, but then, you know how you can press CTRL+S again to go to the next result? Well, that key combo is hardcoded in LISP.
So yes, you technically can remap isearch-forward, but in a useless way.