If you think that Vulkan is extension spaghetti you're clearly using it wrong. Set the API to 1.4 and many existing extensions get merged in.
If you think changing to Vulkan 1.4 solves all the problems, you clearly aren't writing cross platform code.
First of all, that isn't even a thing if you need to target Android, or embedded hardware, secondly there are other extensions on the horizon.
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