I want to move everything, my installed games, saves, etc. How can I do that, and is it a hard process? Its a dumb question I know but I just want to make sure it's not harder than just drag and drop.
If you have a drive formatted to something special or need a particular sector order/file name order then you get to start looking at things like dd (originally a unix/linux thing but has since made it to many systems) https://www.howtoforge.com/tutorial/linux-dd-command-clone-disk-practical-example/
I do have to warn you to be careful with this -- tell it to overwrite your hard drive and it will (or will try which can be equally devastating).
The final thing (other than drive recovery scenarios) is stuff like a device expecting a certain serial for the SD card. Normally this was seen in things like GPS devices (said GPS devices also are often seen to do fun things with SD cards and make it so DD becomes necessary) but that should not be the case here.
Copy and paste will do if the new microSD is FAT32 formated. Just two comments:
1. It’s a good idea to check the new microSD before trusting it with h2testw https://3ds.hacks.guide/h2testw-(windows)
2. Games with anti-save restore functions (like Pokemon) might complain and delete the progress if you switch back and forth with two SDs. A simple copy “old → new” and never using the old data on the old microSD again should not trigger this. But you should backup the saves in decrypted form with JKSM and/or Checkpoint anyway from time to time.