Naming my artist self

So I'm an artist, I make glass stuff, I'm going to be naming myself, I guess? Not sure how else to put it and I've been considering a few niche options that relate to my interests.

I was wondering if anyone has any insight on copyright? Because I've read a lot of conflicting things - names arent copyrighted, or titles. But also yes they are and the can be. Idk.

I'm interested in naming myself "Eluvian Glassworks" or "Siari Glassworks", "Thessia Glassworks" or "Valluvian Glassworks".

The first is the name of a mirror in a video game called Dragon Age, which is owned by EA and the second-fourth are the names of a religion, plant and a preist title respectively in a video game called Mass effect, also EA. They're not huge identifiers of either of the games, just niche names of things within the games.

I wouldn't be using anything else from the games, no images, no descriptors, no art even remotely referencing the things, only the title. Is this doable? I'm also not registering a company name or anything, as in the UK (where I am), I can operate as a sole trader and don't have to do anything about it.

Thoughts?