Not exactly. Yunohost offers solution to host services openly to the internet thanks to simplified configuration of domains (and it even offers free domains) and reverse proxy. Also it has built in email server (not client, but the server). Apps are packaged in its own format and with unique configuration, it is not just some wrapper for Docker Conpose
Yunohost has been recommended to me a couple of years ago and this is a software that brought me into #selfhosting.
Thanks to Yunohost’s application catalog, I got familiar with quite a few interesting applications, learnt about their capabilities, and I still use many of them today, such as Hedgedoc and Wallabag. In addition, Yunohost makes it easy to manage domains or reverse proxies. I currently work as SysOps/SysAdmin/DevOps and when I choose to deploy an application, I opt for something I have more control over, but without yunohost I would never have stepped into this career path. I continue to use yunohost on my main server, which is a bastion of stability for me, but I test new apps and host them on a separate server. In Yunohost, on the other hand, I install the Redirect application to conveniently have access to them outside my network.