I think I am beginning to understand everything a bit better now. Thank you very much for all your answers.
There really is no point going with corner trader and VWRL in CHF. I will have to revisit that later.
What if I choose to hold VWRL with IB? would this be an alternative, or should I go for US-domiciled funds? What are the advantages besides lower TER/TWR for US funds?
So now I am looking at VT, but here a consideration would be to have VTI and VXUS/VEA? This seems like a preferred option here.
That would be a great statistic to have, I guess you would have to take a look at every single company in a given index.