this isn't a deo-d/s suspect thread, but i will say these mons are definitely responsible for the staleness in offense atm. deosharp + keldeo/landorus + mega sweeper + 2 fillers is just so good, there isn't that much reason to run other stuff from a ho perspective at least. these teams are also ideal for the ladder because they make games quick and ridiculous offensive cores supported by hazards just dominate. i've talked to a bunch of people and there's a lot of sentiment that the deoxys formes, at least deo-d, are unhealthy for the meta, and imo part of why less offensive builds have more trouble. it's also a part of what basically requires hazard control in this meta, because without it you can't fight a team with sr + spikes up on the field and ridiculous offensive mons abusing them.
talking meta trends, deo-s is probably the best singular pokemon in ou right now. it requires literally zero support to function and is enormously threatening to offensive teams, while having versatility to handle all kinds of threats with varied movesets, whilst providing sr support for its team. it obviously has flaws but these are so few. there are also certain things that have seen some use lately such as a defensive rocky helmet deo-s and even screens that are, too, very solid. there's so much it does in one teamslot, as a supporter, revenge killer, and devastating offensive force that is dominating the meta atm.