Google is launching a new page experience update in May 2021. This update will take user experience into account when ranking search results. Google will also be testing a visual indicator in search results which show sites that have a great ux experience.
To determine page experience, Google will be evaluating a set of signals. These signals will include: page load speed, mobile-friendliness, https, use of interstitials and content movement during page loading.
It’s not currently clear how much this will impact search rankings but you should make sure your website is up to scratch with the mentioned signals to give yourself the best chance of keeping your current rankings.