I saw an article where apparently Good Old Games might have leaked that Ubisoft will change into a divided subscription model, just like EA with their Play service.
As you mentioned, these require not just 1-2 hours to beat, even if you have plenty of time available, you possibly can't beat more than 2-3 games from this in a month... This is the only problem for me because of the high price - for a lower price, I would consider subscribing even if I could only play let's say >5 years older titles.

I'd rather pick up the Gold Edition a few years later so I can play at my own pace

...and then you'll be on a timer before they inevitably turn off the activation servers, turning DLCs into digital doorstoppers.
DLCs that, more often than not, are actually cut content from the base game, thus being required to complete the story.

And let's not get started on their draconian DRM practices, they use half a dozen different protections per game, all of which are ticking time bombs on their own, adding even more pressure.

You can never win with Ubisoft. At least not without surfing the high seas.

I've beaten Far Cry 6 and Watch Dogs: Legion in the last free month (which was in September, not that long ago). Of course I didn't 100%, but also didn't just do storyline. Who of those who play Ubisoft titles every now and then still does 100%? As you pointed out, the side missions and open world things are just too repetitive even between different series.
Back then I also thought: Valhalla? No, don't stress me to do that in one month. But with this new offer I think about it..
Only reason for me to not go for it is that Ubi is back on Steam and I will buy the games at some point there.

I mean I'd generally say that about any game. Not only does every game's sequel be what you'd generally expect (if it's done well at least), but also most games you can expect what it'll be like. For example, Hellblade is really beloved and so on, but damn does it not feel like every asset flip Unity game with its melee combat, its unpolished environments, cheap visual effects and so on. And when looking at it on the store, it doesn't take much to guess that that's exactly what it'll be. Or for example any open world game with action. It'll boil down to the same thing.

Ubisoft's definitely messy, especially during the jump to the PS5 era with design directions that I personally at least generally dislike. But others oddly enough never get the same slack as Ubisoft does, even though as far as I know, they're kinda the only developers to add like full games worth of content post-launch to their games for completely free. The free expansion for Odyssey, the free expansions for Valhalla, the multiple new main stories, side content and areas for Ghost Recon Breakpoint. I dunno, just odd that it's always the same type of arguments made, but no one seems to have actually played these games to have actually seen what's really happening.

Neither in Argentina...

And to that we have to add the terrible price increases, of these 2 or 3 days, in the entire Ubisoft catalog on Steam...

I totally pass :c

got a screen cap of it somewhere

Far cry primal is one of the best far cry games and the most underrated. Definitely give it a try. Its magical.