shuli, “god,” “dios,” “dieu” and whatever else you can say in a language other than Hebrew are not the names of the Almighty any more than “hashem” is.
Why do you think “hashem” is used? Precisely to avoid the sin of blasphemy.
There are different issurim here as I see it. One is taking the name of the Lord in vain such as by saying the name I will write here instead as “adoshem.” Another is by actually pronouncing the sounds of the name spelled with the letter “yud” twice. Finally, would be uttering the “shem ha’meforesh.” OMG is not even close to any of these.
In God We Trust
If you think that’s assur, give me all pieces of green paper in your wallet on which this phrase is written and I assure you I will take care of them properly.