@JohnPhilpin Yes, probably, in most cases. 😊 But it's important to understand that
del does not guarantee your text to be strikethrough. It represents deleted text, and it's up to browser vendors, web designers and developers how to style that element. For example, deleted text could be shown as red, or light gray, or blurry instead. Or not at all.
s, on the other hand, literally is the strikethrough element. So use that if strikethrough text is what you want.
Trying one's best to use the semantically correct element is good for accessibility as well. Tools, like screen readers and refreshable braille displays, might convey meaning based on the text's underlying semantics.