A bit off-topic, bit hiring exceptional .NET developers is like searching for a needle in a haystack. Way more people have a ton of experience with JS and marginal experience with .NET, just writing very basic API endpoints - yet claiming serious experience.
If you came to me for an interview, your story would have been a breath of fresh air. So maybe try to mention it anyway, someone will be interested.
I've managed big .Net teams. 99% of .Net devs are very, very average. Just crunching out lines of code with little care for quality, performance, readability etc. The best .Net dev I ever hired didn't know a single thing about it; brought him in as the most junior role to tinker with some HTML and within two years he had massively outclassed me.
If you came to me for an interview, your story would have been a breath of fresh air. So maybe try to mention it anyway, someone will be interested.