\!h If you installed it manually

1) Remove the folder app/code/<Vendor>/<Module> (not needed if update or reinstall)
2) drop module tables from database
3) remove the config from core_config_data
4) remove the module <Vendor>_<Module> from table setup_module
5) remove the module <Vendor>_<Module> from app/etc/config.php

php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy -f
php bin/magento cache:flush