Welcome to the Q&A Forum

HI, I don't know if it would make a huge difference in how google will understand the site but it is not a 'normal' setup as per documentation: https://support.google.com/webmasters/answer/189077?hl=en If the site does not have different regional variation pages of english (UK vs USA for example) then there is no need to double up hreflang markup with regional notation. You just need the hreflang='en' and it is good for all english language searches regardless of location. Same goes for all the languages. Personally I would remove the extra regional tags to avoid confusion and keep things as simple as possible.

Thanks Gaston for your answer on this! I will definitely not make a fast move here and will start with testing for sure. Are there are more people who can contribute to this or have experience with this topic? Thanks!