>>587712They're mostly FPS-focused and they've been around for a while - Nazuna and Sumire debuted in 2018 as the first members of LVG, and Ichinose and Toto followed in 2019. The other teams are more recent but also mostly 2019 I think.
For LVG, Ichinose and Sumire are more battle-royale focused (mostly Apex) nowadays while Nazuna and Toto are more tactical-shooter focused (mostly Siege and Valorant, though Nazuna's does CS:GO as well). Initially LVG used to focus a lot on PUBG as that was the currently popular battle royale - probably why they debuted with a set of 4, but the rise in Apex with the 3-player format sort of messed up the need to really have a 4-person sub-squad in the first place and there's a lot of cross-collabs between the different vspo subunits.