Container hosting is a new concept in web hosting world from my point of view Kyup will have no issues with plugins of wordpress. For best Kyup hosting I would recommend you to go for Cloudways. i have my wordpress blog hosting on it and i am facing no downtime. The great feature is auto scaling server when website hits a specific amount of highest users. unlimited staging URLs and Cloudbot notifications made me synced with my server management and health. I just have to worry about my wordpress blog and all the server activities managed by platform.