I also play another 20 year old game - Warcraft too. And both of them have actually become quite similar in many features lately. I am glad some other game commenters share the same feeling with me. For instance:
https://www.msn.com/en-us/news/other/runescape-3-s-necromancy-skill-is-a-perfect-blueprint-for-world-of-warcraft/ar-AA1hpqr0
So, playing RS3 Necromancy is also like playing WoW class and future WoW classes for the next 22 years.
"World of Warcraft: Dragonflight introduces the Evoker class, paving the way for future classes like the Necromancer.
RuneScape 3's new combat skill, Necromancy, could serve as inspiration for a potential Necromancer class in World of Warcraft.
The Necromancer class in RuneScape combines tank and power specializations, making it a unique addition to World of Warcraft and offering potential for healing and support abilities."
"RuneScape 3 is similar to WoW in a number of ways, even predating the latter by several years. The charming world of Gielinor may have had its heyday, but the modern version of RuneScape has recently incorporated a new combat style, Necromancy, an act that's unprecedented since the game’s release."
In RS3, I find not only RS3 players to play for such similar ongoing persistent content, but also WoW players to play with too.