Is it bad for the lithium ion battery if the iPhone screen is set to maximum brightness for a long time?

Sometimes, when playing a Youtube video on the iPhone Xs Max that I use, the content of the video is visually dark that I set the display to maximum brightness to see everything.

The video lasts anywhere from 30 minutes to 59 minutes (1 hour).

If the iPhone's display is set to 100% brightness for 1 hour is it bad for the li ion battery inside?

Does the demand for more power from the battery physically degrade its capacity faster than it should?

If this IS the case then when the iPhone 12 is launched later this year (rumors say it will be on sale in November. My god) I will have to opt for the model with the highest battery capacity...

Cheers to anyone who responds , have a nice day and be careful for that nasty COVID 19.