Doesnt matter if you boot rei or atmosphere. They are both cfws.What about ReiNX ? I also have a hekate as well. Mine is an original 3.0.0 but update to 5.1.0 with ChoiNX. And AutoRCM through ReiNX.
If you want to go online as safe as possible then boot ofw and dont mess with homebrew or installibg nsp‘s