Thanks for the kind responses, everyone! The backup I restored was of my home folder, no hidden files or directories were included, just regular files I want to keep with me. But, in some way, I think clasclin shone light on the mystery: looking through my bash history, I mistakenly used the option --delete when restoring the backup. Since the origin location had none of the hidden config files, all the config files in the destination were deleted as well.
My bad, of course. I'm more used to make backups, not restoring them. I use the --delete option all the time when making backups, so I just put it in the command out of habit. It's rarely a good idea though.
Anyway, does anyone know how can I restore my terminal to normal? It just shows a bash-5.0 text. I find it very useful having my name colored so I can locate easier where I input my commands.