Should I continue to charge my laptop while idle or do I have to put it to sleep while in battery mode?
Nonsense, you can always load that. Goes even faster in hibernation, because then nothing sucks in addition battery.
The only thing that is really harmful, if you have the laptop constantly connected to the mains and thus reload the battery.
As a result, the memory cells are broken and as a result, you can then increasingly stay away from the mains less long, until you finally have to replace the battery.
It does not matter, you can always load it.
So I can just continue loading even if the laptop is already full?
No, see my answer.
So I could generally continue to load my laptop when it is completely shut down?
It does not matter in which condition you load your laptop. You can even reload it when it's completely turned off. I would not leave it on the battery for more than 12 hours, which could reduce the battery life. Everything else is not.
Ok, thanks for helping me! 👍