Actually, the Oxydol powder is darn good stuff. I've found it almost as effective as Tide With Bleach -- not quite, but very close. I completely guarantee, as a user of the "old" Oxydol in the 1980s, that the new stuff is better.
The liquid I use for things that aren't very dirty, but it has a light pleasant scent that doesn't linger, unlike so many others.
I never saw an Oxydol liquid in the old days so I dunno if it can be said that the new liquid is worse.
By the way, the Oxydol products are made by Procter & Gamble on a contract basis for the current owner of the brand, in which P&G retains a stake.