Personally I think where Kate excels is the meeting people part of royalty. The everyday engagements to hospitals etc, the sporty engagements where she can get stuck in, talking to the crowds in walkabouts etc, when you see videos people take of her at those she's much more natural when she's just chatting to other people. The ironic thing is that would actually be OK, the royals still need that. They need to seen to be believed as the Queen said and they need to be out there meeting and talking to normal people. As we've discussed before, it's those meet and greets that keep them going when ten plus years later people still remember the time they met a royal. If she doesn't excel in the more formal situations and is out of her depth, why put her in them. She isn't the heir, she isn't going to be the head of state, supporting charities with visits and maybe a few initiatives and fundraising drives could still work well. But for some reason, they seem determined that she should be leading these roundtables and trying to change the world when I would argue it's just not neccesary.
Edited to add I'm not saying she should do nothing, rather that the meeting crowds, supporting key charities, even launching a few fundraising events or projects like Hold Still, that's where her focus could be. She doesn't need to be "driving national conversation" and changing society, we have people for that already.
Hold Still and the drive she did for Baby Banks in lockdown are her best projects and they may not be these big girl boss in the city events but they do have value and impact and are where she is most comfortable and skilled.
.
for clarification;