If you want, you can have Google Chat and Google Meet open right alongside Gmail on the web. To do this, click the cog icon (top right), then See all settings, and Chat and Meet. Select Google Chat next to Chat to show your text conversations, and Show the Meet section in the main menu next to Meet to see quick links to starting and joining a video call inside your browser.
Drag the top or bottom edges of the Chat and Meet panels on the left sidebar to alter their size and arrange them as you want on screen. It can also be useful to keep your most important contacts near the top of the list—do it by clicking the three dots next to a name and choosing Pin.
Click on a contact to have the conversation pop up. If you click the three dots in the top right corner of the chat window, you can choose whether to save the chat history. If you want to do so, Gmail will archive the log in your account. You can pull it up in the All mail view of your inbox and search for specific words and phrases within it.
Finally, back on the main Gmail interface, you’ll see a Google Chat status button up in the top right corner. By default, this will show Active, telling your contacts you’re online and available. Click this button to change your status and edit the notification settings for Chat in the browser.
You may or may not see a side panel of icons on the right of the Gmail interface on the web. If you don’t, look for a small arrow button down in the bottom right corner of your screen—click it to make the side panel appear.
Click the Tasks button (the blue checkmark) to see your to-do lists. The drop-down menu next to My tasks at the top lets you switch between different lists—for example, you can have one for shopping, another one for chores, and another for work-related tasks. On this menu you can also click on Create new list to set up a new list.
In the actual list, click Add a task to add a new entry to the list, or check one of the buttons to mark a task as complete and remove it. You can also click and drag tasks to change their order on the list. Click the three dots in the top right corner to change the sorting of the list, rename it, and delete completed tasks.
Source : https://www.popsci.com/diy/google-apps-inside-gmail/
