Okay, it's entirely possible I'm just stupid, but I followed the instructions for installed F4SE but there's no F4SE_Loader.exe anywhere. I can't find it in the archive, either. What am I missing? Never mind, I'm an idiot. It was right there on the main page: DON'T USE ANYTHING FROM THE MICROSOFT STORE to unarchive. I used 7Zip and it was there. However, even after installing, I'm not seeing "Launch F4SE" in the NMM drop-down. Oh, wait, I restarted NMM and it was there. Cool.