Copy-paste a Liquid snippet for product page - Plus/minus buttons around the qty input - small UX win, present in almost every paid theme.
1<gpl-qty class="gpl-qty">2 <button type="button" class="gpl-qty__btn" data-minus aria-label="Decrease">−</button>3 <input type="number" class="gpl-qty__input" name="quantity" value="1" min="1" data-input>4 <button type="button" class="gpl-qty__btn" data-plus aria-label="Increase">+</button>5</gpl-qty>
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