Thanks for your answer!
Holding Battery on a specific level is better than always on 100%, but it does absolutly not bypass the battery nor does it prevent the battery from cycle-counts. So it has nothing to do with the actual bypass-feature 
Let’s say i play games with the new 16" with GPU 10 hours on a weekend 2 days (20 hours). It will use several cycles of battery, doesnt matter if i am on 100% or 80% or 50%. It will for sure be very much better on 50% or 80%, but it has nothing to do with the feature to bypass battery. But after 20 hours of constant gaming i probably have 30-40 Cycles.
So this is really about a TRUE bypass.
To the BIOS thing: Could you link to it, where you read that you can disable battery?
But what does that actually mean, “disable” ? If i disable it, will the power be bypass the battery? I really don’t think, this is possible with a non-hardware related change. If i don’t physically change sth. on hardware (like with a switch), how should it be possible to bypass the battery physically ?
But if this BIOS-thing really bypass the battery, it would be absolutely great. Restarting the computer would be a bit annoying, but it would at least be a workaround.
EDIT: The BIOS Thing does not work: Disconnecting/reconnecting the battery? - #2 by nadb
If you do that and plug in a charger, it will automaticly reconnect the battery, so it can not be used for bypass battery.
So my question is still there: Is there any chance of getting a battery-bypass-feature?