I've definitely noticed a major difference in my views and earnings for the few pieces of mine that Medium has deliberately "Boosted" -- versus a majority of them that remain undistributed.

However, I also noticed a major dropoff in my readership waaaaaay before the "Boosting" program was implemented. Around January of 2022, my traffic suddenly and abruptly took a huge tumble.

If anything, being "Boosted" has prevented me from falling into complete irrelevance/obscurity.