I am aware of this, but like many other, I find the IOptions<T> a bad abstraction.
This blog has similar thoughts: https://rimdev.io/strongly-typed-configuration-settings-in-a...
or this blog: https://adamstorr.azurewebsites.net/blog/beyond-basics-aspne...
Or simply google 'asp net strongly typed configuration' and notice everyone seems to be reaching similar conclusions and building their own things.
Just load the setting yourself and register it as a singleton.