Vampires combusting in sunlight’s one of my least favourite tropes in vampire lore. I don’t begrudge Nosferatu for introducing it, but it’s become grossly overused in the decades since.
I can remember Interview with the Vampire and Let the Right One In, which were both very effective in terms of drama and not just “defeating the boss.” I’m curious where else is this depicted? I do recall many vampire movies that merely show them avoiding sunlight, and Coppola’s Dracula literally dismisses the idea. Haven’t seen any of the Hammer movies.