Has the situation improved?I am not sure what you mean by "How is he in his work?" - could you rephrase it?
In the meantime, "somewhat" is an adverb that is mainly used to grade adjectives and other adverbs - it is not used on its own: somewhat happy; somewhat quickly; somewhat old; somewhat thoughtlessly, etc.
Right, yes; in the sense you (and OP) intended, what you said was right on the mark.Indeed - I was less than clear. As an adverb qualifying a verb, it is OK, in the way
A: "How do you want me to do the job?"
B: "Quickly"
is OK, but it doesn't work with "to be".