Yeah, in 2025 doing encrypted email is a painful process. Every option is a hack on top of a 43 year old protocol.
Here is a howto from Mozilla on pgp with Thunderbird. It isn’t a pleasant process.
https://support.mozilla.org/en-US/kb/openpgp-thunderbird-howto-and-faq
Communication between the email servers is normally encrypted with TLS. The email files themselves are rarely encrypted. Most providers that do encryption of email are using local server managed encryption, so the email providers would still be able to access it.
For proper end to end protection you would want to setup PGP between you and your recipients, and encrypt the email before its sent.
WSL version 1 is an API translation. WSL 2 runs Linux in a vm.
the background is the windows 10 default light through windows logo. The start menu is the same style as windows 10 mobile when using continuum.
Like this screenshot I found.
https://dev.mos.cms.futurecdn.net/4BaSC7SumgnrGvxaTfkW6Q.jpg
Thats not Windows 8. Windows 8 start menu was full screen and purplish.
Looks more like Windows 10 Mobile on a dock.
Normal setup for IPv6 is to use public IPs everywhere, and use the firewall to block traffic to your internal systems.
https://desantolo.com/2021/02/ipv6-lan-network-address-translation-nat-on-opnsense/
This article has instructions for configuring NAT6 outbound in OPNSense. It makes the IPv6 work similar to IPv4. Local DHCP routed through single external IPv6 address.