怎么理解as many a remote employee knows的as many的用法

2 怎么理解as many a remote employee knows的as many的用法

原文来自经济学人 Work and the pandemic: Only disconnect

As office life approaches some sort of new normal, remote working is here to stay. Employers enjoy cost savings as they spend less on desks and floor space. For employees the promise is of time saved: spared of their commute, they can get their work done and focus on their families and hobbies. That, at least, is the idea. But, as many a remote employee knows, the boundary between work and home life can blur.

But, as many a remote employee knows, the boundary between work and home life can blur.这句话我大概的理解是 “如远程雇员所了解的，工作和生活的界限并不清晰”

请教老师们，as many的many修饰的是什么呢？还是把as many理解成一个词？查到as many可以看作一个副词表示“一样多”，可是跟我理解的句意好像不大对应。希望能得到老师们的解答，感谢！