Hedging & Concession

It is definitely that remote work increases productivity.
It argues that remote work increases productivity.
It could be argued that remote work increases productivity.

A
B

although
even though
as a result
therefore
while
besides

I'm not entirely convinced that's the best approach.
I am not convinced at all that is the best approach.
I am fully convinced that's not the best approach.

I agree to some extend, however we need evidence strong.
I agree an extent; however we need more evidence.
I agree to an extent; however, we need stronger evidence.