You don't need to fully commit or leave everything behind. You can have the best of both worlds.
A disclaimer: There's no real such thing as a Linux laptop. Linux will work on just about any PC, and I mean that literally. Remember the Intel Pentium 4 processor? It came out in 2000, and it's still ...
Do you have a laptop that’s either “pretty old” or “weird in some other way”? Did it ship without Windows from the factory, or did you flash its firmware with coreboot? You could help the Linux kernel ...