I made a datapack that you can get your friend's last online time in server (for 1.18) : r/Minecraft

New in Town The Settler's Experience Data Pack Minecraft Data Pack

Kai's Decay & DeVine: Plant Growth AI, Custom Biome, Upkeep

How To Download & Install Biomes O' Plenty (Minecraft 1.18.2

15+ Awesome & New Datapacks for Minecraft 1.18.2

Altitude – Minecraft Wiki

How To Install Data Packs in Minecraft 1.18.2

server.properties – Minecraft Wiki

How To Install Data Packs in Minecraft 1.18.2

How To Add Data Packs to a Minecraft Server (1.19.2)

Gen's Server Utilities Minecraft Data Pack

I made a datapack that you can get your friend's last online time in

Sculk Shriekers Always Spawn Wardens Minecraft Data Pack

Minecraft Java Edition 1.20.2 Now Available