Just came across this post/tutorial on MultiTail:

'MultiTail is a powerful terminal-based utility that allows you to view multiple log files simultaneously in a single terminal window. Think of it as tail -f on steroids.

Instead of opening several terminal tabs or splitting your screen with tmux, MultiTail creates dynamically managed panes inside one terminal session. Each pane can follow a different file, command output, or even network stream.

At its core, MultiTail is designed to:
- Monitor multiple log files at once
- Display them in split windows
- Apply colorization rules
- Merge multiple files into one unified view
- Filter content live
- Follow new files dynamically'

-- source: https://idolinux.com/multitail-what-it-is-and-how-it-can-make-you-a-better-sysadmin/

Cheers, Peter