My research has continued and there are lot of plugins doing this , but not really that much. My softube cl1b is 32bit vst2 so the vst2s are also “affected”. Using jbridge didint make any change to its behaviour.
I have found a solution though : Take the plugin gui and click “activate the effect” button on the corner. This “bypasses” it completely and properly. I wonder why is there difference on the bypass button and activate the effect button. I now only use this method. When they are bypassed they show as yellow on the insert stack but activate effect makes them dark.
Still it would be so much nicer to use that bypass group button effectively and so on than now click them one by one. This could be easy solutionfor steinberg if the bypass insert would work like activate effect , i dont know what is their difference in design anyway.