The SERPs I watch in the UK are near chaotic. Apart from high spending price comparison sites that dominate everything in my niche (why are they considered to know more about the services they are middlemen for than those that actually create them?) results are still fluctuating madly, weeks after these 'updates' first began. It makes little difference though since googlespam makes the organic results virtually invisible anyway.
Google has been predominant for years and it is unlikely that anything will change in the foreseeable future.
Consider the following:
Google's share price has dropped by more than a third over the last year. Perhaps the market knows something you don't?
American legislators have been unable to reign them in thanks to hundreds of millions spent on 'lobbying' (some of us have a different word for that) but legal issues are piling up through the rest of the world;
ChatGPT may well take away a huge chunk of non-commercial queries - it has taken the Internet by storm and I couldn't even get on the site yesterday;
Google are laying off staff; a figure of 6% has been mentioned for this year;
Well financed rivals are circling; Neeva in particular give search results that are at least as good as Google for non commercial queries, but far better for commercial ones;
Despite all G's attempts they remain a one-trick pony. The other bets, taken together, are still loss making. Take away advertising and Google will collapse;
AI is poised to be the major disruptor and it is still in it's infancy yet. Changes are hard to predict but they will come.
I have been in business for more than half a century and I have watched commercial empires rise and then crash with monotonous regularity. Perhaps you are right and Google will manage to retain their monopoly; but history is against that. 2023 will be an interesting year.