It is very sad to say this, but you need to know a lot even about such things. As far as I know, yes, the pension goes to the husband, but the problem is that the company that will cooperate with you on this case may not tell you about things that you should not know, and this will be beneficial for the company. My aunt died recently, and before she died, she decided to leave a will that we would share with my brother, and we contacted these guys
https://waymanandlong.co.uk/new-services/estate-planning-probate/ , who issued all the documents quickly and without judicial intervention.