>> I might be unusual in the sense that in my teens I absolutely adored Asimov as a writer of non-fiction rather than as a sci-fi author.
That's because he was only the second-best sci-fi writer but the best science writer in the world at the time [Clarke-Asimov Treaty of Park Avenue|https://sfandfantasy.co.uk/php/the-big-3.php]
If Lem was there, he would likely have agreed to dedicate his books to "the best third-rate scifi writers", given his generally critical view of American/Western scifi as naive, "commercial trash", and shallow entertainment.
Ha!
I did not know about this. Arthur C Clarke was indeed my favourite at that time (even now).
Asimov, however, killed it with his two goosebump-good shorts, Nightfall and Last Question.