MadAhab
There's plenty of outdoor spaces that are treated for ticks prevention to enjoy too, to get the best of both worlds.
It originates in a different place of your body (not from your gut) and has different components.
That's about the simplest I can explain the difference.
Another explanation is allergies and panic attacks also go hand in hand from what I've heard. Panic attacks cause breathing problems and can easily be confused with anaphylaxis or make real anaphylaxis even more terrifying than it already is. Feeling fear that a threat is ever present when you have any food allergy is real, but manageable.
Ask your doctors to become educated on it, though I'm not sure it'll do much good to you it may help the next guy they see with AGS. Send them the nih.gov papers linked in these comments.
Classic flu style vaccines like J&J's covid vaccine can use either a pig or chicken egg base - the pig being potentially risky for alpha-gal allergy sufferers and egg theoretically fine. I personally have just avoided the flu vaccine though may try it this year after confirming I can get the egg based one.
The other links are interesting...alpha gal and covid-19 are both very new afflictions which don't have much history of study yet. So I take that info with a grain of salt, though lets hope it leads to some breakthrough for treatment of either COVID19 or AGS.
Accidental allergen exposures happen once in a while, as you get used to the diet and learn hidden sources of allergen, they happen less. There's been no point in time when I thought I had to test if the allergy had gone away yet because I can usually remember a recent small or big hive from the past year. Right now I think I'm at least 1.5 year without hives, probably thanks to quarantine forcing a more controlled diet.
Since about my second year of being allergic I've been very well adjusted to my fish/bird meat only diet and have no insatiable desire for a steak so I'm OK waiting another few years before purposefully trying anything dangerous.
What to do in the meantime until the 30-days the allergy takes to develop? 100% avoidance of all things you mentioned would probably be safest.
Why avoid? There are many anecdotes of the allergy fading with enough time when you practice alpha-gal avoidance. So starting IMMEDIATELY and never having a post-tick bite alpha-gal reaction may stop reinforcing the behavior in your immune system even faster. That one theory of how this allergy supposedly fades with time, is its sort of forgotten and dropped from your immune 'defenses' but that maybe not right.
Regarding Dairy, I personally haven't had much problem with cheeses however high fat milks and sour cream kick my ass usually. More processed stuff like cream cheese surprisingly was ok. I believe I read other's online anecdotes supporting what my body has shown to be true also, cooked dairy is usually OK for whatever reason, a similar phenomenon to young kids dairy allergies where they can have it cooked in dishes. But again you may want to do 100% avoidance diet and slowly reintroduce, a standard allergy practice.
RE: cross contamination. Again I'm not a highly sensitive alpha-gal sufferer but I haven't had many issues with this. It would probably be a problem if someone used bacon grease to cook instead of a regular vegetable oil. I've stopped worrying too much about this when I dine/order out and have been OK. I put that energy making sure what I'm ordering doesn't have any hidden beef/pork like in broths of soups.