Well, shields definitely feel paper thin right now if they aren’t worked around correctly
Take Orisa for instance, her shield is super weak right? The reason for that though is because she’s the tank that does the most damage from the longest range.
If you bring characters along that synergize with that and break the enemy shield before they can get close to you, then it hardly matters that Orisa’s shield is weak. Even better is that Orisa’s shield is suited to this playstyle by having its health tied to a cooldown rather than a regeneration. This means that if you are able to continuously put out damage and keep the enemy away, then Orisa’s shield will end up blocking more damage over a match than other tank’s shields can.
With that being said, Orisa could still use a buff, but playing the right characters with your tanks is important to make any of them work properly.