Well crap...that's great...and awful. It still feel's like patches.
That guide would have had you go to the iTotalJustice patches. If you did that, try using these:
Sigpatches (GBATemp) — alternative Sigpatches for when others don’t seem to work.
Sigpatches — get your iTotalJustice Sigpatches here (with free instructions!)
I keep a list of homebrew I use in my sig. I think the last round there were issues with mission control, fizeau and the loss of decimal place accuracy for temperature. All have since been patched up though so unless you have some esoteric piece of software things are pretty friggen stable in the Switch scene right now.
I hear you but I also think the mixing and matching might be causing your issue. It's a lot easier to troubleshoot something if we're all on latest everything.
Yes, Sept was deprecated. Here's the release note announcement when it was removed from the repot.
https://github.com/Atmosphere-NX/Atmosphere/releases/tag/0.20.0
Fusee-primary/secondary are gone...now there's only Fusee.bin and package3. Boot times were greatly reduced and of course stability continues to be enjoyed by all.
No worries. I need to go touch some grass myself.