I forget which one it is, but you can try to hold R while trying to launch another game to open the HBmenu or just open the gallery normally and it'll open HBmenu but I think that would still be in applet mode.
You should try this. It's not guaranteed to work, but still worth a shot.
https://gbatemp.net/threads/cleaning-up-nand-to-play-online-safely.551767/
After doing that, I played Fortnite since it was free and online to see if I would get banned. I did this around March 2020 and haven't been...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi