Border bureaucracy at present is much worse because of Covid checks when that ends personal movement will become easy again. For commercial traffic there is going to be no chance, when the current fast track system finishes it will get worse, thats what independence means.
I sent a parcel to Europe and it still hasn’t arrived in 3 weeks, it used to take 3 days, setting our own rules for regulation and licensing means they are not recognized in EU, that’s one of the reasons HGV drivers are short, their licences are not valid in the UK.