Probability is what conjecture is based on.
I’m pretty sure this was discussed multiple times in the past, and basic logical reasons into why Meghan can not be as rich as her fans claim her to be has been talked about.
Allow me to repeat:
Suits was aired on a barely known (even in the US) cable network.
It had at most 3 million viewers (well actually I think it reached much lower than this mid way through its airing), and it wasn’t on the quality level of the likes of Mad Men or Games of Thrones (I recommend you check how much John Hamm made per episode for Mad Men first 4 seasons- as the lead! And that show was a major critics, people and rating success!)
It shot in Canada to save production money, that includes actors salary.
And most important: Meghan was a no name, 6th on the call list.
She likely made Union money or a bit higher. I would be surprised if she made more than 15k an episode. Maybe managed to negotiate a bit more when her relationship with Harry became known and she could use that publicity for leverage.
Take off management and PR (SS one of the most expensive!) fees and taxes she’d be left with half of that
She was rarely seen with truly expensive clothes or even a car.
Another point: She never owned any property.
LA is expensive, but you can still buy a nice little house for 2mil (maybe a bit less a few years ago). She never did.
One of the thing (maybe THE thing) that actors who made it love to mention is how this show/movie made it possible for them to buy a house. Because it means stability.
Meghan never did. Which is the most clear indication she either never earned enough to buy one, spend it, or was aiming for something way above her finances ability.
As for residual, Suits is now on syndication, I believe all main cast members get something, a preferred rage of their salary or a fixed rate, once a show goes into syndication and is aired. And it is on Netflix too.
So she probably gets something, but I would highly doubt it is more than peanuts money compared to what Harry probably gets from his trust fund, or the amounts Charles gives them.
So no, I don’t think they can afford the jet set expensive life, which imo, Meghan has proven to want.