I’m mostly playing BG3 those days and the battery lasts max 1,5-2 hours until I have to plug it again. So if I have a long playing session (like today, slow Sunday) I will have to charge it pretty frequently. Is it bad for the battery? I wish it lasted longer, but oh well (don’t see myself upgrading to oled at this time).
While there is no harm to the battery at all, I am in a similar boat to you and if you can take a £10 hit a month you can get GeForce Now on your deck fairly easily and I get better performance with BG3 and handheld lasts a good 4/5 hours.