Thanks for your feedback! We’re reviewing your suggestion.Kay Cee commented
Definitely use the Advanced Find Replace instead of the truly horrible "new" Find.
In Customize Toolbars and Commands, you can re-assign the Shift-Command-H shortcut and make it open the Advanced Find/Replace window - which it what it used to do in every single previous version, until Microsoft with its usual stupidity changed it.
And even THAT won't make it go straight to the Replace tab as it used to. There is no longer any way to go straight to Advanced Replace....
which has got to be one of the most boneheaded changes ever made in a newer version of Word, and a quintessential example of just how ridiculously out of touch Microsoft is with what its users do on a day-to-day basis.
But customizing that Keyboard command will at least allow you to avoid the buggy Find completely.
By the way: history sadly shows Microsoft clearly has no intention of listening to, or acting on, even the most common user complaints.
There are several, almost universal complaints that have been made over the past 10 years about changes to newer versions of Word. Microsoft hasn't fixed a single one of those complaints despite them being repeated over and over by literally millions of users over the past decade.
So don't hold your breath waiting for this bug to be fixed either. It's never going to happen.