By Default SharePoint groups pages has the paging limit set to 30. So if you have more than 500 groups it will be a nightmare to find the particular group that you are looking for.

There is a very simple way of editing the number of groups that appear in the _layouts/15/groups.aspx page.

• First go to  “https://yoursite/_layouts/15/groups.aspx“
• View the page source of the site
• Search “WebQuerySourceHref” in the page
• Copy the Guid for List and View from the WebQuerySourceHref and note it somewhere we will use it later.
• Now past the following URL in the address “http://youtsite/_layouts/viewedit.aspx?List={listguidhere}&View={viewguidhere}“.
• Now it will open the view in an editable form as a normal list view.
• find the item limit at the bottom and increase the limit to any number you prefer.
• Save the view.
• Browse to “https://yoursite/_layouts/15/groups.aspx” now  you will see the same numbers of group as stated in the item limit in one page.
• This changes the paging number for displaying the groups in groups.aspx page.
• https://sshareasolutions.com/2019/03/26/manage-sharepoint-site-and-list-permissions-from-single-screen-on-premise-or-online