Just simply paste this code at the very bottom of the theme.scss.liquid and that should removed the Collection Title.

@media screen and (min-width: 769px) {
.hero__title, .page-title, .product-title-big, .shopify-policy__title h1, .shopify-policy__title .h1 {
display: none !important;
}
}


Please make sure you have copy and pasted them all otherwise it would break the theme.

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