Under the hood he's not really significantly different than his other seasons. The hard hit, avg exit velos are all in line with his previous hitting profile and still indicates a dangerous hitter exists in there. The biggest drop offs have been in barrel rate, and more importantly the plate discipline -> K/BB rate. Julio's always been quite the hacker, he's generally been in the 20-30th percentile in chase and whiff rates to go along with K and BB rate, this season it's all the way down to 10-15th percentile. He's swinging at everything and whiffing a bunch, which could be a result of pressing at not seeing the results from hitting the ball hard and getting hits.
It's a Bichette profile with a grade or two lower in hit tool and a grade or two above in power. Julio (and Bo similarly) will be fine, but this kind of profile can lead to some pretty bad looking slumps. The luck will even out and the power will carry him to a hot streak to make him look like he made an adjustment when really all he needs is a slight improvement in plate discipline.