Updated builds available, based on @Flamefire's July release. Sorry for the delay.I have recently made unofficial and custom LOS 17.1 and 18.1 builds of LineageOS for microg for lilac, based on FlameFire's most recent builds.
The builds are available in this AndroidFileHost directory
More information at https://github.com/petefoth/unofficial-l4m-builds/blob/main/README.md
On the 18.1 builds, banking apps from UK’s Co-operative Bank are working fine (Co-operative Bank Personal and Business apps, and Smile banking app). Sadly they don't work on the 17.1 builds