Does UCL care about GCSE grades as much as LSE?

Hi everyone,
Yesterday I got rejected from LSE for Politics and International Relations Bsc due to my GCSE grades not being "competitive" enough. My predicted grades are A*AA, I take maths, politics and geography a-levels and my GCSEs were 888888,7,6,5 ( with the 5 being French and the 6 being art). I am a young carer, living in a low income household, going to a college in a deprived area and I have several disabilities and am likely to get contextual offers. I have already gotten into KCL, Warwick and SOAS all on contextual offers, but only really care about going to LSE and UCL for my degree, obviously I cannot go to LSE now but I was wondering if anyone knew if UCL would act similarly towards my GCSE grades or if they are not as worried by GCSE grades as LSE. I just really want to prepare myself and get a good idea of whether I might actually get in. I have researched a lot online about this but could not find anything relevant apart from the fact that UCL requires grade 5s and up for core subjects (I got 8 for all my core subjects).