(I work in admissions at a RG Uni)
Whilst we don’t include EPQ’s in our offers, they’re far from useless. Experience in researching & writing in a longer format, especially in a topic linked to the undergraduate course, can be very valuable.
The OP is also massively overstating the value of extracurriculars, (unless directly linked to the course of study), and is also repeating the myth of “needing to stand out”.