There is a method to check my modules installed and enabled or disabled using just the admin panel?
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System > Web Setup Wizard > Module Manager
You can access using the admin panel the route Stores > Configuration > Advanced, as the image below. On that page, you can enable or disable some modules as well.
Notice that this is taken away from the admin panel since Magento 2.2.0. Reference, https://community.magento.com/t5/Magento-2-x-Admin-Configuration/advanced-menu-missing/m-p/81393#M1973