The problem with solos is the existing armor/health/damage systems. It's designed for a team of 3, with the ability to coordinate team-shooting at a single target for quick bursts of damage. There's too much potential to get third partied.

The other BR games play better because the systems were developed for solo/duo/quad from the start. PubG you can frag someone in 2 shots tops from most guns in the game if you're accurate. Apex by contrast you're putting 10+ rounds depending on your gun into the persons chest and that doesn't take the sliding/fast movement/abilities into consideration which only throw gunfights outta way.

Glad it's here so we could definitively pass judgement but yeah, it's just not good.