If you want to disable auto-scroll on click in collapsible widget then you need to follow below instruction.
1, You need to override lib/web/mage/collapsible.js to in your theme app/design/frontend/[vendor]/[themename]/web/mage/collapsible.js
2, After that, you need to comment “elem.scrollIntoView();” this approx line no. 575 in your overwritten file
Like:
_scrollToTopIfVisible: function (elem) { if (!this._isElementOutOfViewport(elem)) { /* elem.scrollIntoView(); */ } },