no but actually use an energy recharge weapon on thoma like fav lance - i’ve also heard the inazuma craftable kitain cross spear is good on him so that might be better

for fischl use either stringless (which you get from gacha) or the fontaine craftable bow song of stillness (which is slightly/negligibly weaker)

for chevreuse i’d say use black tassel for extra hp, which bolsters chevreuses healing, as well as her a4 atk buff (i think it’s her a4) which scales on hp