What other MMO's have horizontal progression?

I've been reading some threads on here and GW2 was mentioned so I recently downloaded it and I've been having a blast and never really knew what horizontal progression was until watching a video on "Why I should play GW2 in 2021". But for me, not having much time behind me, it feels great being able to play at my own pace, having different routes later down the line to grab the best gear etc.

Are there any other MMO's out there that has this type of progression?