Button w/ Hover On Effect:

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selector .elementor-button {
    display: inline-block;
    position: relative;
}
selector .elementor-button:before {
    background-color: #f79e3b;
    content: "";
    display: block;
    height: 100%;
    left: 125px;
    opacity: 0;
    position: absolute;
    top: 0;
    transition: all 300ms ease-in-out;
    width: 40px;
    z-index: -1;
}
selector .elementor-button:after {
    background-color: #faec33;
    content: "";
    display: block;
    height: 100%;
    left: 125px;
    opacity: 0;
    position: absolute;
    top: 0;
    transition: all 300ms ease-in-out;
    transition-delay: 100ms;
    width: 20px;
    z-index: -2;
}
selector .elementor-button:hover:before {
    left: 175px;
    opacity: 1;
}
selector .elementor-button:hover:after {
    left: 221px;
    opacity: 1;
}

Button w/ Hover Off Effect:

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selector .elementor-button {
    display: inline-block;
    position: relative;
}
selector .elementor-button:before {
    background-color: #f79e3b;
    content: "";
    display: block;
    height: 100%;
    left: 175px;
    opacity: 1;
    position: absolute;
    top: 0;
    transition: all 300ms ease-in-out;
    width: 40px;
    z-index: -1;
}
selector .elementor-button:after {
    background-color: #faec33;
    content: "";
    display: block;
    height: 100%;
    left: 221px;
    opacity: 1;
    position: absolute;
    top: 0;
    transition: all 300ms ease-in-out;
    transition-delay: 100ms;
    width: 20px;
    z-index: -2;
}
selector .elementor-button:hover:before {
    left: 125px;
    opacity: 0;
}
selector .elementor-button:hover:after {
    left: 125px;
    opacity: 0;
}