OpenObserve is built for centralized logging - Not really for installing it on every linux host. If that is your use case, I would recommend you to look for other tools.
who said about installing it on every host? i mean that the collection of the host running it is already a pain. yeah, the frontend is nice, but log collection is the most important part and openobserve is awful for it as it was designed by people just caring for k8s clusters and app metrics.