There's a lot I could say about all this, but time is limited, so I'll try to be concise:
Firstly and most emphatically, cinemas will adapt and always be with us, I have no doubt. Here's why:
Stop Saying Home Cinema Systems Are As Good As Real Cinemas | Cinemania (medium.com)
Secondly, I don't think the box office "failure" of The Fall Guy, Furiosa, et al is anything to get too worried about. They may yet recoup their costs in other ways, and even if they don't, there will always be other hits. There is far too much obsession over opening weekends in any case. Silly algorithms drive hysteria about these things, amid all the interminable social media marketing. It's time to stop dancing to their tune. What I do believe is that it's high time mainstream Hollywood stopped spending national debt sized budgets on films (and marketing), and started investing in more modestly budgeted, creatively original works. There may be a higher risk, but the returns on investment could potentially be much greater. I don't see why they feel a need to bet all their money on one horse.
Of course, this is exclusively a mainstream Hollywood problem. With rare exceptions (Christopher Nolan, Jordan Peele, or Denis Villeneuve, for instance) they are at their most creatively inert that they have ever been. Far too many executives, parent companies, and (God help us) "tech" entrepreneurs sticking their noses in where they shouldn't. It's a dismal place to be for creatives at present (unless you're a proven force of nature like Nolan).
I'd add that cinema elsewhere doesn't have this problem. British and European cinema, films from the Middle East, South Korea, Japan, etc, etc, not to mention the US independent scene, remain as creatively vibrant and interesting as ever. Cinema is in rude health, except in mainstream Hollywood.
More thoughts on the undue obsession with box office here, if you're interested: