The community / testing devices use close to mainline kernels. But there are hundreds of devices in the downstream category. https://wiki.postmarketos.org/wiki

The community / testing devices use close to mainline kernels. But there are hundreds of devices in the downstream category. https://wiki.postmarketos.org/wiki/Devices#Downstream https://wiki.postmarketos.org/wiki/Devices#Downstream Sure, they're less usable than mainline devices, but it's possible to run linux with a vendor-provided old kernel.