How to Change Backend Session Timeout in Magento 2

The best feature offered by Magento 2 gives you an option to set backend session timeout in seconds. After the introduction of Magento 2.1, it collaborates with the browser’s session cookie, therefore when you close your system browser session is automatically terminated. Thus, for session timeout, every store owner can set according to their need.

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Importance of Backend Session Time Out In Magento 2
The massive problem in session time out is if you have less time for session timeout, then to log in every time is too annoying for any person. So, to overcome this problem, you need to change the session timeout from the backend. Almost the preference will be like backend session timeout can be nearly 24 hours. By increasing time, the person using admin will have to login one time per day, which will be more helpful.

Steps for Configuration
Step 1: Primarily, open the admin panel on your Magento 2 backend and open the stores and click on the configuration option.

for more step tutorial :https://magecomp.com/blog/change-bac...out-magento-2/