Laptop Recommendations Please

Simswhynotplay​  The RTX 4050 would be a clear winner for me because I play other games that I want to run as well as possible.  For you, the answer might be different.  An RTX 3050 will run Sims 4 vanilla on ultra settings without any trouble.  Mods shouldn't be much of a problem for the hardware (they can of course break the game), and they don't tax the graphics engine anyway.  Custom content can be fine, or it can be more demanding than the game's own items.  Using ReShade definitely means more work for the GPU.

So the questions are, 1) are you going to use any of this content, now or in the future; 2) if so, would you be unhappy to have to turn down some graphics to medium; and 3) does the added heat and noise from the MSI mean anything to you?  I can't tell you what matters most to you, only what to expect from these choices.  And in the end, both machines are good choices, so you should be fine either way.