Yes it is, but /e/OS still runs on 8-Oreo while LineageOS 17.1 as well as LineageOS-17.1-for-microG runs on Android 10 ‘Q’.
Try the following: First install the latest version of
1. stock Android 8.1.0
2. TWRP 3.3.0-0 * but not(!) TWRP 3.4.0-1 * followed by
The above proposal, now crossed out, is not a good idea. Why? Because I have not been able to get e-0.13-o-2020120989191-dev-taimen to work either based on stock Android 8.1.0, 9.0 and 10.0. Flashing the stock Android ROM is a zillion times faster than handling the outdated e-Recovery and e-0.13-o ROM. Every installation process shows an identical error:
Unable to find partition for path '/cache'.
The check with TWRP 3.3.0-0 and 3.4.0-1 confirms this: No
/cache partition is displayed in TWRP and cannot be deleted, as stated in the /e/ documentation:
Installing /e/ from recovery
6. Select the
System partitions to be wiped and then
Swipe to Wipe
Installing LineageOS 17.1, on the other hand, is child’s play.