If my PC was left connected to Cloudflare WARP, I would not be able to remote access it via Splashtop from an external location. Also Dropbox is blocked when connected. The way I solved this is to add Split Tunnels in the Cloudflare backend to bypass domains used by Dropbox and Splashtop.

*.dropbox.com
*.dropboxusercontent.com
*.dropboxapi.com
*.dropboxstatic.com
*.api.splashtop.com
*.relay.splashtop.com