Mantle

Mantle is getting slower and remained expensive compared to other L2s

Mantle is actually the cheapest L2 after the Mantle V2 upgrade

I'm a gypsy emperor who'd rather not make it than to fake it. Not all the ideas are mine. 

Mantle is actually the cheapest L2 after the Mantle V2 upgrade
 https://twitter.com/growthepie_eth/status/1775886046007636432?t=lGW1A29a3-dUGPZvyfQ5rw&s=19

Yes the upgrade is complete! You can find a recap on the Mantle blog 
https://www.mantle.xyz/blog/announcements/mantle-completes-mainnet-v2-tectonic-upgrade