Get yourself a bike wheel from somewhere and experiment.

Hook it to something that will not actually dent the rim and pull
as hard as you can on it. Hang from the ceiling yourself on it.
If you can deform it, the spokes were not properly tensioned.

A good wheel is tensioned to 110-125Kgf.

Like everyone has said prior, the weight of your bike just is
not an issue. I've got a dozen bikes that have been stored
this way for years.