Algorand also uses Proof of Stake, is much faster than ETH, and supports smart contracts. MSM won't write about it for the same reasons they won't write about a large AWS outage but they _will_ write about a Facebook outage. It's not a conspiracy; it's just not interesting to laypeople yet. The shitshow of art NFTs make for good press.
Which claim? The meme that transaction throughput is inherently low in crypto is falsified via solana (as mentioned) or avalanche. Bitcoin will likely always be low TPS. Ethereum 2 maybe will eventually ship.
I've been seeing this claim for years now. It's gotten quite old.