Can only speak for myself but constructed Hearthstone has lost it's appeal - I just don't like how the games play out these days, the powercreep has gone too far, makes it feel like a single-player game too often. I only play Battelgrounds now. I'll give the new class a try at launch, who knows, it might inspire me to play constructed again.
Marvel Snap is alright, but long term I don't see me playing it, as I just don't have enough interest in Marvel characters, outside of Guardians and Spiderman. I couldn't take any of the Avengers films seriously, and I feel like the idea of pretending all these super-heroes exist in the same reality totally undermines them. Feel the same about DCU - like, Batman is cool..why undermine the character by pretending he exists in the same time and place as Superman and Wonderwoman...it's just kinda lame to me.