I just checked the reviews of JBL One Compact at Thomann: There are 3 German-language and 1 French reviews so far, and remarkably, all 4 reviewers say that the JBL beats the Bose S1 Pro in terms of sound.
Link: https://www.thomann.de/de/jbl_eon_one_compact_reviews.htm?ar=476306&page=1&order=0&rating=0&reviewlang%5B%5D=1&reviewlang%5B%5D=4