This is the dread situation. Rumaan's advice is good, but as she acknoweldged, she's giving a partial solution at best. There is no good solution.

My wife is working from home, and if anything, her workload has increased because her company provides financial services related to covid relief. We are incredibly fortunate that, for the time being, I have been given a reprieve from work, so in addition to doing the cooking and what cleaning I can, I have been parenting and homeschooling both children. My wife is still doing the grocery shopping—a small number of large trips, in the wee hours of the morning—because I have an immune system disorder. Eventually I will be recalled to work, and I don't know what we will do then.