https://i.imgur.com/H5XQ0EX.png
first have to click pick image…
then top right 3 dots > browse>>
https://i.imgur.com/od7oJV0.png
click icon pack studio…
https://i.imgur.com/pzysmD5.png
finally find icon and hit save.
https://i.imgur.com/RHOE3R3.png
pixel 4xl with latest lineageOS
https://imgur.com/a/5Jbqexv