Likewise, I had the J&J in the early days. No adverse reactions (no reaction at all), but I got the “I’ve been vaxxed” certification which turned out handy in many subsequent situations. I avoided the mRNA shots like the plague.
Personally I think the J&J was probably deprecated because The Powers That Be, corrupt and greedy, wanted all the revenue for themselves. The J&J shot was less experimental, much less expensive, etc. and didn’t provide as much grease to the palms of our evil overlords.
Sic transit.
Note how the to this day is pushing the mrna jabs commercials on tv and all.