Unfortunately: no.
You haven’t properly described and dissected the problem yet (or did I miss that when reading ?) so you blame “openHAB” for everything. That won’t enable any developer help fixing your issue(s).
Most replies (including Tadfri and zwave users) state OH 2.4 or 2.5M1 are stable for them.
So your generalized statement isn’t true and there’s something specific about your setup.
Please be more specific. What is your problem ?
Is it the Trådfri binding only ? Does it crash OH ? Does OH work if you disable/remove it ?
Is it the ZWave binding ? Does it spit errors ? Does it just not support devices of yours (yet, in 2.4) ? Does it work beyond those devices ?
Frankly: while you admitted your post is non constructive whining - if you have the time to write longish posts like this you also should be able to invest that time into describing, debugging and hairpinning your problems, so please do.
It’s fine to whine about e.g. the Trådfri binding needing restarts or ZWave not supporting devices, but clearly it is not ok to call OH instable because of that.
I guess you know this post, please take #6 - #11 How to ask a good question / Help Us Help You for serious.