explain

What do they mean they play on online server i dont understand

im not 100% sure but:
imagine youre playing at home on the valorant servers, thats online. so if they are playing online it means that its like if everyone came to your house and played a game on the valorant servers

theyre not on an actual LAN. theyre on the riot online servers

ASD [#3]

theyre not on an actual LAN. theyre on the riot online servers

Didnt know there are LAN servers

They are at one location but all the pcs are connected to the Norcal server (15 ping)

feaN [#4]

Didnt know there are LAN servers

It's not LAN servers... there's a Lan client given out to pros who have to play Lan that allows players to play on what we would call a local area network

It means that you are connectet throgh Internent: Your Computer-router-Internet-Valorant Servers. Plus the servers could be owned by a third party company and they rent them. Anyway the servers are physically located where Riot or the other company operates. So the packets have to travel from your location to your internet provider servers to the Valorant Servers, they all been located in different places.
When we talk about LAN, the servers are local and you don need to connect to Internet.

EU_quiet [#6]

It's not LAN servers... there's a Lan client given out to pros who have to play Lan that allows players to play on what we would call a local area network

There is still a LAN server. Someone still needs to host a server on that LAN, which is typically done on a separate machine (for competitive integrity).The client just allows them to play offline rather than exclusively over the internet to Riot's cloud-based servers.

it means, that riot had them fly to LA, just so they could PLAY ON THE FUCKING PUBLIC NORCAL SERVERS

they are not playing LAN serverzs

so the bottom-line are the pings and fps better?