From now on, I'll be trying to write a small bit of info for each new unit released. I'll archive the info for each unit in the spreadsheet so you can access ones I hide in the future.

First, some quick info:

Albedo has close to the lowest normal attack DPS in the game. This doesn't really matter too much since you probably won't use them but it's good to keep in mind if you were thinking of a physical build.

His charged attack is a lot more appealing, dealing actually very decent %/s

Over 30s, his E deals 2010% DEF. Above I've tried to convert that into ATK % based on some standard stats. It has decent particles rates, with a 2:1 ratio for generating:not generating particles per proc (2s)

Single target, his Q is relatively low DPS compared to other bursts (especially for a Geo unit).

If you're using him as a support, and are able to use his ult off CD, per 30s you'll be doing:

E + 7 Shards/Q (30s)

We can use these numbers to compare ATK vs DEF as a main stat on sands with 800 Base ATK / 876 Base Def (Level 90):

E + 7 Shards/Q (30s)

Since Geo%/Crit scale the damages equally, we can ignore the effects they have on the numbers.

We can see that best case scenario, where you're able to use your Q as often as possible and thus have the most ATK scaling, DEF still wins as a main stat on Sands.

However, since neither ATK nor DEF fully scale Albedo's damage, Geo/Crit should easily win as main stats/ sub stats.

Ideally, you should try to build DEF/GEO/CRIT as your main stats on Sands/Goblet/Circlet, prioritising Crit substats (As with almost every other DPS).

Similarly, I'd avoid using an ATK% weapon on him since it only scales half his damage. Black Sword (Crit Rate) or Festering Desire (ER% + Skill buffs) are solid, accessible options.

Technically DEF/GEO/DEF might be better for his skill damage, but then you end up sacrificing a lot of damage on his Q. If you don't want to use his Q since it might be a DPS loss compared to using your Main DPS, DEF/GEO/DEF is viable.

It also should be noted that if you're running him with Venti/Sucrose, and can guarantee your Q always doing AoE damage, ATK/GEO/CRIT (Or just DEF/GEO/CRIT) might be the best option.

Optimal artifact sets might depend on the team he's on. 4Archaic is solid, but it might not have much use if you're using him to support Ningguang. In that case, there are a few other options such as 2Petra2Gambler or 2Petra2Defenders. You could also just run 4Noblesse if you don't have a unit with Noblesse.

Low Q damage but solid E damage. Best setup if you're not running him with another Geo and might not get to use his Q as often.

Best setup if you're using him to support Ningguang and are able to use his Q often. Also decent if you're using him alongside Venti and can guarantee AoE on his Q.

As a Sub DPS that doesn't really rely on his burst to deal damage, Albedo can fit into most teams. He can have extremely low field time, allowing for good pairings with greedier DPS like Razor/Klee/Childe

He's also likely the best support for Ningguang at the moment, since he has higher energy generation than Zhongli and doesn't interfere with her projectiles like Geo MC might.

Since his E/Q have decent AoE range, he's also suprisingly good with Venti who can allow for continuous AoE E procs or fully AoE damage on his Q.

Comparison with Fischl

A comparison with Fischl, Albedo's strongest sub DPS competitor (Numbers from DPS SIM, "Great" artifacts / BP weapons)

At a quick glance, Albedo does a surprisingly similar amount of damage. However, if you include Fischl's A4 passive and any reactions she creates, she ends up pulling ahead.

She can also benefit from VV (Not included above) which should allow her to end up doing a lot more damage.

Albedo however does AoE damage on his E, which should allow him to close the gap in fights where you can group enemies.

I didn't include his Q damage since if you build DEF it ends up being relatively low - to the point it's not necessarily worth using (if you only get 2 shards per Q).

As a Geo he'll also benefit in the new abyss floors, and still outclasses Fischl as a sub DPS for Ningguang.

The new Geo Resonance should also increase his usefulness - If its released as initally described, I'll likely move him up to A+.

It should be noted though that since they're on the same banner, and we've already gotten c0 Fischl for free, you'll probably have a constellations Fischl vs c0 Albedo. In this case I think Fischl just flat out wins, especially if she's c3/c6.