yes it's the same shortcut to jump to the search bar and do a google search in the google/chrome browser. still works, but also does the search bar thing. maybe consider changing it to something that is not that shortcut? (that one in particular is often annoying because it has like, no restrictions on when it can activate)
I find this often happens when I try to move the pieces around on the first round of endless mode. it makes location selection weird. it fixes itself though, and plays normally enough
I will say, this tutorial is a bit excessive. you can almost certainly guarantee that a player will be familiar with the basic concepts of this game (play your cards, defeat the enemies, get rewards) and such things do not require a tutorial, in fact, including such things can cause players to think the tutorial popups are just telling players info they already know, and skip past them, potentially missing important information that they don't know.
additionally, you have tooltips! even the tooltips themselves can serve as a tutorial. just by reading them, I was able to figure out that my cards cost hp. the only thing you really need to tutorialize are the things the player potentially won't understand, like how your arrow notation works.
as for the "interactive" part of the tutorial you could briefly explain how things like shield and card refill work, but if you do, you should do it after the player experiences these things, especially in a safe environment like a tutorial where any misunderstanding would not cause any meaningful amount of failure. ideally the visual and auditorial design of the game should communicate this without the need for a tutorial.
I personally think it would also be good if the info from the tutorial could be viewed at any time through a ? menu or something, if you think the game is complex enough to need extensive tutorial. think about what information you might put in such a menu, and try to limit the tutorial to explaining such info. allow the rest to be communicated through gameplay (and tooltips).
without any progressive difficulty increase, a high score just indicates how dedicated you are, how much time you're willing to invest, because you can just keep increasing at a constant rate.
unlucky mode: easier than easiest difficulty (by the factors that difficulty changes), but if possible, on your last turn, you will be likely to not draw any scoring cards. this means the minimum amount of card-drawing cards, all tools if you had at least 5 in your draw pile, or just not enough stuff to win if possible (unless you already have enough, in which case, you would draw only scorium-related cards). also you could make it so pandorite and stuff always gives the minimum amount, shield is always in the first hand after a reshuffle, and mole is always at the bottom of the deck, and draws special ores last. also, no reroll (i barely use it anyway)
this game mode would make for some interesting strategies
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my dung beetles got eaten
I do think this game could use a better victory screen though