I followed this thread with great interest, partly since I have been working with patients with Covid during the pandemic and partly since I (finally) was caught by it myself. A concise recommendation for returning to sports after Covid was published in British J of Sports Medicine, and it can be read at the below link:
https://bjsm.bmj.com/content/bjsports/54/19/1174.full.pdf
Although it is two years old and don’t discuss the newer variants, I do think it is still valid. Good luck with Aconcagua!