These appear to be west elm circle cut out chairs. I don't think they in the online catalogue anymore, but I did a quick search and it looks like some sets are coming up for sale on other sites.

Thank you Scottevie.... Today, I’ve had a good look at Early Settler (gorgeous store!), Temple & Webster, Miss Amara, Freedom, Fantastic Furniture (which has come a long way).... and even Magnolia.... and I’ve found some beautiful alternative rugs to this one .... but not this one. I might put on my big girl undies & give the heart a little thrill & see if I can find it in the US - & how much of a loan I might need to get it shipped lol.

Thanks Dreamer for spending your time looking for that gorgeous sofa. I have emailed Home beautiful to see if they know a little more about it. The ones you posted are nice, but you know what it’s like when you have seen something you love. Thanks again and stay safe

Have you been into the closest timber supplier? Often they won’t have stock on their website, you have to go in and ask.