When you pair to one device, do they automatically pair to all of your devices?
All Apple headphones work as standard BT headphones on non Apple devices. I fail to see any “vendor” lock in.
As far as price, you can also pick up a pair of $50 Beat Flex headphones that have most of the same functionality with Apple devices.
I assure you those $35 “AirPod equivalents” don’t have the noise cancellation, spatial audio, transparency mode, or microphone quality that the AirPods Pro have.