Well our rail and tram networks are owned by foreign interests and there is never a shortage of companies vying when the tenders are up for grabs. Usually British managed by the accents of the spokesmen.
I hope they work well, never been though relatives love it, too hot for me!
I think key national assets are better owned and managed by the people who have a natural interest in them, power, water and sanitation, infrastructure, steel etc also more accountable if and when things go wrong (and they will go wrong). You need to attract good management, which will cost, and invest, train and incentivise the workforce, for the common good not just to pay dividends to private ownership.
If done properly this would spill over and support the private sector also, which in turn feeds back into the state. If we are serious about decarbonisation for example, it will need government control and ownership, with this shower in charge I expect it’s going to get a lot hotter over here also.