Ultra watch 1

these forums are user helping other users like yourself, it's sort of going to a physical apple store and asking other customers their advice

This is a user helping users with tech questions forum, we are not apple and apple do not read your posts here

You can provide them with feedback using

Product Feedback - Apple

Or reach out to their official support channels

Get Support (apple.com)

And or

Contact - Official Apple Support

And or

Contact - How to Contact Us - Apple

Or

Genius Bar Reservation and Apple Support Options - Apple

The built in hardware of the first generation Apple Watch Ultra does not support any further upgrades of watchOS than version watchOS 26

That does not mean, that Apple will stop supporting the watch with watchOS 26 security updates.