Not everything on the internet is true but...

This has been a long time discussion since the beginning of cellphones. This article goes over some of the myths about charging you phone. I would be interested in what the cellphone manufacturers have to say but it is a good read...
https://www.pcmag.com/news/charging-your-phone-overnight-battery-myths-debunked?utm_campaign=trueAnthem%3A+Manual&utm_medium=trueAnthem&utm_source=facebook