facebook is social media, therefor friendica is social media
instagram is social media, therefor pixelfed is social media
twitter is social media, therefor mastodon is social media
at the VERY least, all the latter platforms can interact with each other via activity pub, as can lemmy. by interacting with lemmy, you’re making interactions with social media
social media isn’t just big tech - social media is a way of interacting with a system
is reddit social media? most people would say yes it definitely is… and this makes lemmy firmly social media
apparently this is an issue with some part of the hardware that lots of hardware security devices use too, so not as simple as just buying/building an alternative