pretty simple, telemetry makes the game use more memory so this makes things a lot better
https://modrinth.com/mod/no-telemetry/version/1.7.0

telemetry makes the game use more memory

Do you have any data/anecdotal evidence to suggest this makes a substantial difference (at least a megabyte or more)?

when I tested it recently it liked to crash occasionally because of telemetry and when I disabled it I gained around 5 mb of memory

it's extremely difficult to capture the difference with screenshots because the memory counter on the f3 screen changes more times per second than I could capture the difference with

Alright, I added a note to the page about it.

relating to the subject Sodium 0.5.0 has done something to allow for fancy settings, and a 10 chunk render distance with no issues whatsoever (except when you relog)