main change is “xxx” becoming (xxx), how you setup the modules depends on your system. I couldn’t have a clear answer so I’ll do the same, RTFM lol
You can start from here [Stable Update] 2020-11-04 - Kernels, Nvidia 455.38, LibreOffice, Plasma5, Frameworks, Apps, Gnome 3.38, Deepin and read previous related messages, direct replies, or the replies made without replying directly which you will need to scroll down to find.
In the end I just changed the characters and left my modules as is.
//edit: and for your GRUB you can keep it as you have it currently, then changes are only comments, the new Manjaro grub theme, and quotes, or not, around parameters. You don’t want to replace your GRUB_CMDLINE_LINUX_DEFAULT line, it contains the needed info to resume from sleep, you could add the missing parameter though if you want.
//edit: everytime there is a pacnew doesn’t mean it is REQUIRED to overwrite your file. Here the changes are marginal and would not break anything if not applied. pacnew file just mean there was changes in the default config file, and it is up to you to think if and what you will modify, or not.