If it’s a painted frame, you could find a colour match with adhesive vinyl Hthe kind they use to wrap cars, like 3m Dinoc), and apply those. I have a gloss black bike with holes covered by matching vinyl, and the coverup is pretty much invisible.

I had the same 'issue' with my Bowman Palace:R when I put etap on it.

Went to my LBS and they rooted around for a solution in a catchall box in their shop. Found perfect fitting caps to insert and sit flush to the frame. I glued them in place.

I've heard of people using Sugru to plug the holes in frames, but I have never tried it.

https://sugru.com/

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the world's still turning? >>>>>>> the world's still turning

what about just cutting a small piece of clear helicopter tape and taping over the hole?

Did you check with Focus (or local shop/distributor) to see if they have any specific to that frame?When I bought my current frame it came with different stops/plugs to accommodate the different groupset option (Di2, eTap, mechanical).

Theres a company that makes different shaped silicone /plastic ones for cable guides, braze ons etc

Can google bike frame plugs or grommets