Absolutely, yes.
In fact, I think that’s what the majority of people here do - personally I use huel for breakfast and lunch during the week, and normal meals all the rest of the time. I would certainly miss having my ‘normal’ meals, both for the social and taste/texture aspects.
Even Julian, one of the founders of Huel, has regular food in addition to Huel. Same for me, too. I tend to have one 100% day per week, and the rest of the week I have evening meals.