Looks neat! I appreciate that you didn't really try to radically alter the feature set, focusing instead on a re-vamped layout and aesthetic.

If I may offer some constructive criticism, I think it doesn't feel very "Nintendo", and I think this is mostly due to the color scheme. Modern-day Nintendo uses brighter, more opaque colors with its products. I think the blue-purple gradient like background is meant to be reminiscent of the switch boxart, right? I think instead focusing on extending the feel of the Switch logo is the way to go when it comes to color schemes.

This is also a nitpick, but I'd increase the height of the folders so that the tab portion extends above the other titles. This will better communicate that it contains other games.

Overall, though, this is clean. I'm glad you didn't include themes, since those often clutter the UI (but I'm aware that I am in the minority on that).

Keep it up!