Yes very normal. I agree, try a shower! But he will likely grow out of it.
Ours has started fighting baths the same. We find it sometimes has to do with him being overtired or overstimulated and he just doesn’t want one more thing to get through. We do a quick wash of his genitals and butt, wash his face, wet his hair and call it done.
Children definitely reach a point where they hate baths lol maybe a reward system would help? Their fav show or snack for taking a bath! Hope that helps
Lots of toys in the bath 😊🎉
Try a shower my son prefers those