As DoughnutANZ says, above, covid is everywhere and the Camino is no different. But bear in mind that people who have bad experiences -- whether with covid or with something else -- are more likely to post than people who did not have bad experiences. ("I got mugged" is newsworthy: "I did not get mugged" is not).
In contrast to Trecile, my wife and I walked in Portugal in May. We stayed mostly, but not always, in private rooms, and ate indoors in restaurants all the time. We did not get covid.
I'm also one of the leaders of our local chapter of the American Pilgrims on the Camino, and am thus in touch with many people who are either on the Camino now, or have recently returned. None got covid.
All of which is just anecdotal. It's obviously possible to get covid on the Camino, but probably no more likely than if you stay home. Also, I don't know where you live, but Spain and Portugal are among the most highly-vaccinated countries in the world, way more than in the US, where Trecile and I live.
I'm heading out for another camino in the fall. I have the same concerns and fears as you do, and am (almost) your age. But my view is we're running out of time, and if not now, when?