I acknowledge your distress, and your views about fairness. I am happy with my opinion. My views are my own, and you invited them
Your distress reflects your experience, which is valid. But that does not mean that it is justified. The Ombudsman is likely to judge that your distress was an over-reaction in the circumstances. They will view your unwillingness to engage with reasonable attempts to resolve your concerns without recourse to formal measures as potentially vexatious.
It is a reasonable expectation that you will be contacted - in the first instance - by the person who might be best placed to try and resolve your concerns informally. My extensive experience in this arena means that I know that the Ombudsman does not look favourably on complainants that refuse to engage with reasonable attempts to resolve a complaint.
You asked for opinions, and mine is that the Ombudsman will not uphold your complaint. On the contrary, they will refer you back to the GP practice and encourage you to engage positively with their attempts to address your concerns before you escalate matters.
Also, if you expect a thorough response, you should not expect it if you are only sharing partial details of your complaint. Give someone half a puzzle, and they are unlikely to complete it