A couple of extra things to keep in mind:
1. The amount of sharpening you apply will depend on the photo
2. Your original photo needs to be in focus. You can’t make an out of focus image sharp with Lightroom
3. If I’m using a high MP camera like the A7RV, Hasselblad X2D, etc I’ll resize the longest side to 6000 pixels so my files are not too big