Ye Shunguang vs The Foundation: who would win?

Ye Shunguang favored — Slight edge (~55%)

Ye Shunguang · Zenless Zone Zero · Qingming Sword

Tier
7-C, up to HIGH 7-C
Attack Potency
Town Level, up to Large Town Level
Speed
Subsonic, up to Massively Hypersonic
Durability
Town Level, up to Large Town Level

The Foundation · Fortnite · Base

Tier
7-C
Attack Potency
Town Level
Speed
Average Human, up to Supersonic+
Durability
Town Level

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.