Both of these don't fit your desc, just are similar to parts of your desc
'Roujoteki Shoujo Hinata-chan'-- this ones like an incarnation, slice of life-ish story where the mc uses their old age knowledge for daily activities.
'Rewriting the villainess' -- doesn't quite fit the description either but this one does have the transmigration plot from historical to the modern world, although their past knowledge is not really much in use, it's just more of a plot about them helping the character of the modern world.
OMG right I remember the first one, I read it long ago and love it.
But I can't find the second one in mangago. Is it under different tittle?
The second ones titled 'The villainess'
Is there a transmigtation story from past to future word? And the historical knowledge/norm is their cheat. I hope not chinese manhua though, I'm not used to their fast paced story. Manga or manwha recomendation please