At the moment, trying to recruit anyone in a field which traditionally relied on expats to fill roles - engineering, technology, accounting, finance, marketing etc - is crazy. I know of consulting firms turning around offer letters the day after a first interview in the hope they lock in a candidate, and people 5 years out of uni are being offered crazy salaries because there aren't enough qualified candidates out there. For other companies like the one I'm at, we're either adjusting hiring budgets or reevaluating our plans for the rest of the year.
That can only go on for so long before it flows through into prices, inflation and interest rates - which will be bad for mortgages and house prices. Hence the speculation is that borders have to open later in the year to take that pressure off.