Not really something I miss - in Solasta (I don't know if it was homebrewed or 5e) you could get around that - like putting god's symbol on the shield or something like that. Being able to cast with two hands equipped was a matter of progression, rather then tactical mechanic.
I am more annoyed by shield bonus being applied even if it is not currently equipped. It just doesn't feel right.
Where does the shield go if it's not equipped? Usually, it hangs on the character's back, or it should. Now, in most video games, that shield that's supposed to be there isn't shown, but it should be.
