RefreshEvent from the “lightning/refresh” module in Salesforce Lightning Web Component can be used to refresh the page without browser reload.

Sample Lightning Web Component code:

HTML:

<template>
    <lightning-card>
        <lightning-button
            onclick={doRefresh}
            label="Refresh"
            variant="brand"
            class="slds-var-m-left_x-small"
            icon-name="utility:refresh"
            icon-position="right"
        ></lightning-button>
    </lightning-card>
</template>

JavaScript:

import { LightningElement } from 'lwc';
import { RefreshEvent } from "lightning/refresh";

export default class RefreshViewComponent extends LightningElement {

    doRefresh() {

        console.log(
            'Inside doRefresh'
        );
        this.dispatchEvent(
            new RefreshEvent()
        );
    }

}

js-meta.xml:

<?xml version="1.0" encoding="UTF-8"?>
<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">
    <apiVersion>60.0</apiVersion>
    <isExposed>true</isExposed>
    <targets>
        <target>lightning__RecordPage</target>
    </targets>
</LightningComponentBundle>