I really only buy the short adventure compilations from WoTC - the big campaign books are of no interest to me, too tied to WotC ideas and very badly structured. I especially enjoyed Yawning Portal and Saltmarsh as conversions of the older adventures, saving me a lot of work.
For the most part, Infinite Staircase is fine - and it has some great art. But oh, geez, the "updating for a new audience" phrase that always hangs over products now like some sort of eldritch harbinger....
Are modern D&D authors allergic to any sort of flavour at all? Reading through the "update"" of Lost City, the awesome pulp-inspired subterranean city of drug-addicted albinos whose only salvated is 3 sex-segregated cults has been turned into a standard D&D city (all D&D races are now in Cynidicea apparently lol) who aren't albino and instead of imbiding the elixir of fantasy merely "have an alliance with myconids"). Instead of the complicated labyrinths below the ziggurat we have a linear series of rooms leading to Zargon.
Alexander and Zenobia's names are changed because for some reason D&D writers have an allergy to real-world names and prefer ones that make no sense etymologically (but for some reason Darius and Demetrius remain, lol)
Luckily I have the Goodman Old Games version but I pity any new fan for who this is their only experience of Lost City.
I haven't looked through the others in depth, but I am amused of Amun-Ra in the Pharaoh adventure becoming "Amun-Sa", presumably because he was named for an ancient egyptian god... but he retains the god's name "Amun" in his name and "Sa" is another name for "Ptah"! What was the point of that change? I guess I should be grateful he wasn't "Bamun-Sa" or some nonsense.