080 Slowbro(Galarian)

Confusion deals slightly more damage than Poison Jab, while the latter provides slightly more energy gains. Either can be viable depending the typing coverage that's more preferable. 

Sludge Bomb requires the least amount of energy and is a good well-rounded charge move. Psychic could be chosen for its STAB Psychic-type coverage, which has similar stats. Focus Blast demands too much energy to see consistent use (especially with shields up), but its wide coverage and devastating damage may catch opponents off guard. 

Galarian Slowbro's interesting Poison/Psychic typing and movesets makes it quite solid against Grass and Fairy Pokemon in the meta (including Azumarill), picking various Fighting-types as well. However Dark-types with Counter and Deoxys Defense Forme tend to be more of a challenge. Interestingly Focus Blast options might be the more appropriate choice, as its coverage gives the potential for a larger variety of potential wins compared to less potential but more consistency with Sludge Bomb/Psychic charge moves. Unfortunately without cheaper charge move options (energy-wise), Galarian Slowbro is indeed quite slow at applying shield pressure, and often loses to Pokemon with much faster movesets. 

Much like in Great League, Galarian Slowbro's performance is similar in Ultra League. The decision on moveset options will have a meaningful impact on various matchups, with some favored over others. Poor shield pressure is still largely a problem, and despite having decent bulk for this league, it is still inadequate to move to the top of the meta. 

Bro this G bro ain't got no stats for ML, bro.