I use my 11 pro max all day, but I always have it resting on a wireless charger every minute its not in my hand. I've had it since launch day and my battery health is 100% still. While I use my phone a lot I'm also really OCD about the battery dropping below like 85% (i swear I'm always preparing for the natural disaster thats going to occur at any minute. Anyhow, no issues here.
After going without electricity for 3 days a year or so ago (a natural disaster for me 😊), I try to keep all me devices close to full charge just in case. During that time without electricity I spent a lot of time in Starbucks recharging everything and even that wouldn't be an option now. I did buy a wireless charger during that episode and now I have to keep that charged too. Something to do while "Sheltering in Place". I have the 11 Pro and the battery life is amazing. I'd like to have a smaller phone, but the battery life and the beautiful OLED screen is not something I'm willing to give up.