the lowest that glasgow accepted as of either 2022 or 2023 (i can't remember) was 18. their average was 22-24. of all the LNAT unis, glasgow probably care the least, which is the good news. also, it's holistic- if you've got A*A*A* or something really high predicted + an impressive personal statement (although on the open day they said they don't really care much about PS) then you probably still have a strong chance.