I'm guessing that's unlikely. Some are giving a small no-strings-attached stipend for WFH expenses but I'd be surprised if there was any widespread reimbursement for outfitting home offices. (Which is TBH less of a big deal in a world where most people are using laptops.)
My boss at a FAANG told his org (100 people) to spend whatever it took on home office equipment and that he'd figure it out on the backend. Asked us to run anything by him if we were planning on more than $2000.
We are in a team that saw increased demand during COVID. I expect that he thought it would be a lot easier to ask his management to come up with $200K in expense than have the core services start to fall over under load if people weren't working effectively.
If you work from home, ask if your company will reimburse you. This is a business expense.