Wanted to have a light, cheap one from Sennheiser (one of those for 20 €) for homeoffice use. Sold out on Amazon. Estimated delivery mid or late May.
And it's like that for all the inexpensive "business headphones". If you want some shiny-blinky-bulky-"gamer headset", Amazon will be happy to send you a dozen till tomorrow morning.
It's crazy.
Headphones with mic from your old phone should do it too.
What's more of a problem I might run into soon is that my setup was already out of date for video calls; this seems increasingly like a hard expectation rather than an optional plus; and the pseudo-docking way I use my primary laptop at my desk doesn't currently allow me to orient the builtin camera so that it catches my expression at a reasonable angle while also letting me leave the monitor in front of me. Putting the laptop where my monitor currently is might be workable, but it could also get squint-inducing at that distance… I might have to play around with this.
Others at the company have bought similar items over the past couple of weeks too, and they are an increasing presence at conference calls. I wouldn't be surprised if the non-blinkenlight variants were the next item to go on scalpers' hot list.