Would it be worth using RF shielding can in order to achieve better RX immunity?
A simple question can raise up whether a shielding can might help in further achieving better receiver immunity (i.e. selectivity, blocking) against the possible RF noises or it wouldn't have any significant effect on that.
The short answer is: likely NO, practically the RX immunity cannot be improved with RF shielding can in any case. Mostly, due to the following RF considerations: