Official LineageOS 22 was released today! As such all supported devices will be upgraded in January to WundermentOS 21.1 (WundermentOS will follow the same numbering convention as LineageOS for QPRs).
Build and testing of WundermentOS 22.1 is already underway and no major issues have been found so far.
No devices will be deprecated with this release as all existing devices are still supported by their vendors.