Once you have started or joined a meeting, do the following:
1. In the lower right-hand corner of the Meeting, click the three dots and the select “Change Layout”.
2. Click “Titled”
3. By default tiles scroll bar is set 9 people. Just drag it over to the right to accommodate up to 49 people. (Note: When you scroll over to the right, you can select 16, 30, 42 or 49.)
Seeing yourself in the grid
1. Hover over your thumbnail and click the “Show in a tile” button.
2. Your video will now be showing up in the grid with all the other participants in the meeting.
For more information about seeing up to 49 people, including yourself, in a Google Meeting, please refer to the below Google Support Article.
https://gsuiteupdates.googleblog.com/2020/09/49-people-tile-view-see-yourself-google-meet.html