The linking of the Minibrowser is broken and tries to use ANGLE.
Created attachment 453087 [details] Patch
Note that there are important steps to take when updating ANGLE. See https://trac.webkit.org/wiki/UpdatingANGLE
Committed r290426 (247734@main): <https://commits.webkit.org/247734@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 453087 [details].
<rdar://problem/89411548>
A bit late to the party, but I'll say that it's the same for the WPE port: there should be no need to add any of the OpenGL::{OpenGL,GLES} targets as part of the ANGLE one. So I would have marked this r+ myself if Kimmo didn't beat me to it 😉️