I have a website (www.deijsmannetjes.nl) built with Helix Ultimate template and SPPB3.
I have a dev version of my site (dev.deijsmannetjes.nl) where I upgraded to SPPB5.
What I notice is that my footers are messed up. I have a SPPB module on the bottom-1 position of Helix Ultimate. But with SPPB5, the text of that module is shifted 1 position to theright, sothat it overlaps with the module on position bottom-2.(See here: https://prnt.sc/9MNp-Xz1GYNP)