I work at a desk, lean my chair back, and use a footrest. Here's the one I'm using now: https://amazon.com/gp/product/B07PWT8X6K/ My desk has a keyboard tray so I can keep my chair low, and I'd want something taller if I had to raise my chair.
For me, this totally eliminates back strain from working. I've also got a friend who uses a La-Z-Boy in his home office, with his laptop connected to the TV. He can't say enough good things about that setup.
A couple years ago I got a Secret Lab Titan, which does have high back/head support. I'm very happy with it. Before that, I've worked this way with whatever chair my job gave me. The head support is nice, but for me it isn't critical.
For me, this totally eliminates back strain from working. I've also got a friend who uses a La-Z-Boy in his home office, with his laptop connected to the TV. He can't say enough good things about that setup.