Auto-levelling should be bale to compensate for that corner, however loosening that corner may help. Also adding springs to each corner so you have room to adjust each corner, up and down, is also an option.
Thank you. tbh there wasn’t much of an issue anyway, it was just my OCD telling me there was something substandard and an area that had the possibility of improvement. I tried loosening the corner, but something in my mind didn’t like that concept, so when it returned with very little effect I went exploring other alternatives. Found another post on this forum about Babystepping and configuring UBL as an alternative to linear bed levelling, which had actually improved something that was good already. So bonus!
Auto-levelling should be bale to compensate for that corner, however loosening that corner may help. Also adding springs to each corner so you have room to adjust each corner, up and down, is also an option.