Today, I don’t drink any alcohol appreciably. If drinking a beer over a week or so might help, I’d be interested in trying it.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9966200/
Though there are plenty of other things that are good for gut health having nothing to do with beer. I don't know a lot about beer. I'm basically a non-drinker. But I do know a lot about gut health.
If you drink beer and you want to feel good about it, cool. I have no problem with that. But there are lots of other ways to support gut health if that is your real goal.