Latecomer here. I couldn’t work out what you meant exactly by disabling all effects (insomuch as that did not mean disabling the profile I had just loaded), nor did I know what to do with the enormous list of information the pactl list command gave me. Is it just a matter of unchecking the two effects boxes? And how to get the default profile into the autoload folder? Is this a text file or a command string to copy into terminal?
Is there an easier way? In the meantime, the EQ in my Jabra bluetooth buds can be altered from my phone even while playing from my Librem 14. But I would like an easier way to do what you wrote here.