I install Lineage on the phones of the elderly at local care homes and any people who are interested in prolonging the life of their old phones. Poor people can't afford a new phone every two years. When in your 80's you dont need or want the constant nagging of apps pestering you when all you want to do is text and call your family and friends. I use abd to delete/disable every unnecessary useless app and leave them…
Can LineageOS do major upgrades without needing support? (so once it's installed you never need to reinstall, and you can keep it safely up-to-date forever by clicking a button every so often - like Silverblue)
But on LineageOS you can update through all the updates for the major Android version (mostly ASB fixes and some new features here and there) by clicking a button from the Updater menu, courtesy of Android's A-B dynamic partitioning update system.