No, he didn't cause it, but he did do an extremely poor job of responding to it. Countries that took aggressive measures early have seen minimal deaths and minimal economic damage. South Korea, for example, is just about done dealing with their second wave and is forecasting a GDP loss of about 1% for the year.
I'm not sure where you get the idea that Biden plans to shut everything down immediately on taking office. There's certainly no mention of it in his
published COVID plan. That's a strategy that would have worked in March, but by this point, it's likely too widespread.