Have never really researched how exactly beneficial it is but I disable fast charging and try to keep charge between 20 - 85%. Read some time ago that is the general rule to prolong life for Lithium batteries.

Not a really good answer: I just stopped caring about it.

Charge it whenever you need to, but heat is the battery’s biggest enemy. A slow charger is ideal since it generates less heat.

If your phone is plugged most of the time, you can consider setting a charge limit if you don’t typically use more than what limit is supported.