What is the difference between the Current patch and NMG categories? I uploaded a run following the NMG path but it was reclassified in Current Patch and I don't understand why

What is the optimal version of Metroid Dread for speedruns? Physical version, digital on console or digital on microSD?

Recently, in the Metroid Zero Mission section, the possibility of using the RTA in Emulator Runs has been enabled using the Bizhawk emulator with a specific configuration and with strict rules for greater legality when uploading a run. Is it possible that in the future this measure will be taken into consideration for Metroid Fusion?

I have a question about the way in which classification is ordered in Any% normal. Why does the ranking follow an order until position 89 and then follow another order that does not match the times of people in the 90th and lower positions? Does the RTA have priority? Thank you very much in advance