Back during the restrictions in January 2021, there were several massage shops with boys open in Jomtien and near Tuk Com. Sometimes discretely open, sometimes blatantly, even when the police walk past.
Back then, the number of cases per day in the whole of Chonburi was often less than one per day, so I think the risk was minimal, for me as an unvaccinated farang in his 50s.
Perhaps with the increased number of covid cases now, a little more care is needed for a few weeks ?
The massage is certainly hit & miss. I had some very good massages and some bad, one lasting 20 minutes. Obviously I only return to the good shops and after the 20 minute experience, started clarifying how long the 60 minute massage lasts in advance.