It'll be like every other business expense. Some companies will cover it, some will not. Some will make it easier, some will not.I wonder, for how many private businesses, is weekly testing even feasible and/or practical. And who covers that cost (do the feds)? I imagine the argument from some businesses will be there is only one choice available.
Like my earlier construction example. Maybe the company provides hard hats, maybe they make you buy your own, maybe the subsidize the cost. Or steel toe boots, or work gloves, or whatever else. Even a single company may handle different items differently. This is just one more thing like all the others.