Dear DLoos,
I really feel for you.

Dr Boedts vision on tinitus etc is that there is often a physical starter (in your case the virus, in my case the mandibular condyles being trashed) which leads to "over-alertness".
Our hearing system incl the muscles around the mandibula are never "off". Even when we sleep, part of our nervous system remains alert for potential danger.
And with an extra physical issue and/or stress ad/or sensitivity due to unsafe childhood or other factors, the system goes in overdrive and cannot get back to homeostasis, a relaxed state.
This is why he combines working on the symptoms (patches on overtense tympan, fisio) with brain and nerve stimulation to truly reconnect the neurotransmitters (sorry, can't explain, it is something about repairing brain connections and cells and relax).

From the research I did, many "treatments" are more readily available in the US than in Europe (where they are not re-imbursed btw).

* Only the patches: Dr Boedts, Luisterkliniek Gent has developped these patches himself. I only know they are made out of material that dissolves naturally in the body, which is why the process (5 minutes) needs to be repeated.
Normally he combines this with A. temporary medication (0,5 benzo and 0,5 antidepressant, I forgot the name but it is a new kind which has effect within a week), B. Transcutane electrostimulation of the brain, C. Orofacial therapist who also uses a form of electrocurrent to release trigeminus D. Psychotherapy.
He also works with a clinic Brai3n.com for severe cases.
My own experience is limited to the patches and electrostimulation.
From what I read online, there are many different types of electrostimulation available and it seems the USA is ahead of Europe.

Which is also the case for visual therapy, such as I take for the visual overdependency.

Personally, I am also supported by my meditation practice and lots of workshops, trainings on yoga, nervous system,...
And recently face yoga, with someone really good, explaining uscle groups, not a shouty twenty something talking about wrinkles. She teaches online, in Spanish, if that would help.

But mostly, I am now working in person with a therapist who combines Feldenkrais with BMC (Body mind Centering) and that is an amazing process: I feel more grounded and learn how to open up spaces in my head... Which is lowering symptoms and the "alertness" in a dramatic way. I believe this type of therapy is also more widely available in the US than EU.
I did a lot of online Feldenkrais classes with a US-platform movementandcreativity. Com. Possibly my body reacts so fully to this in person treatment with touch because of this basis.
Maybe MovementandCreativity can direct you towards a practicioner?
When I was totally down and out in 2023 and could not cook or do yoga (vertigo), I did hours of their online classes, just to get back into my body, and move slowly and stop worrying.

Oh, I also recently got a plastic thing (opbeetplaat, gouttière in my languages) to put on my lower teeth at night, at home. I do not have bruxism, but it does seem to reduce tension in the jaws, which in turn reduces tension in the ear, migraine etc

Truly hopes this helps you too