Install the app on the corp phone

Have you installed the vm tools on the guest?

Pair it with the arrsuite and chef kisses

Rustdesk? Guacamole?

TPM storage, perhaps?

manages to give absolutely no useful information to what your problem could be

It is clear to me this is either a troll, or a layer 8 issue.

Backup? What?

Or a hotmail.com one

Depending on your level of paranioia. First, you don’t expose your containers, but their port(s).

With a reverse proxy, you will likely expose only 1 port, 443, no matter how many apps/containers/ports it will be pointing internally. For this, having a proper dns setup will be key, and a service like cloudflare dns (not tunnel), which additionally you can proxy your proxy. Also, you will need certificates (letsencrypt) for your traffic to be encrypted. Here, everybody will potentially have access to your services.

Another option is a zero trust tunnel, but as you had seen streaming may break tos. It will be likely enforced if you stream a lot, but I seriously doubt you’ll get any problem by having sporadic one or two users.

Tailscale, you need to add all the devices you need to access your services into the mesh, and you’ll need to re-authenticate every one again every few months.

Setting up a VPN (selfhosted) will require your devices to sign into it when accessing your services, and it seems to me the best approach as this way you will nave the most control over your setting.

Don’t forget to mention that, for this to work, your ISP should provide you with public IP, because if on CGNAT you will have to go with something like tunnels or tailscale.

You can place both containers within the same gluetun network, and make gluetun expose that containers ports

None that you know about

I’ve found that as well with some files. At first I thought the issue was with the jellyfin instance had not enough capabilities, but after trying the same file with its subtitles, it worked on any other client: flatpak, web, and regular android. So for me it is the chromecast/androidtv device, so I am now looking what to replace it with

Joe-ker