RustDesk is awesooooome! https://rustdesk.com
Currently using its direct IP feature, to connect my work laptop to my desktop computer. Really responsive on LAN, and easy to setup as no relays are needed.
TeamViewer is just a no-go, especially when working with sensitive information like work related stuff etc.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.