I figured I should share some teams since there's only one in the OP. These are what I used in the suspect, I tried to go for weirder builds and got some decent results so here they are.
https://pokepast.es/17ae7b3d6ed2369e - HO
Yeah HO in Linked is quite standard. I initially had Persian in place of Necrozma but that made my team too vulnerable to Clef. Fake Out + Feint Persian is definitely potent though, it can nuke and 1v1 a lot of offensive threats. Necrozma with enough setup can beat Clef, although I think something else can be run over it. Accelgor is a fantastic Spikes lead, Spikes + Final Gambit is a nice combo and I'm surprised I haven't seen it before me. Scarf Ribombee can disrupt most lead matchups, allowing you to clear hazard and set Web at the same time. This was my favorite set back in gen 7 so I wanted to build my first Gen 8 team around this. Lycandusk is a neat revenge killer, and it can also Taunt to keep defensive mons low on HP and not let Clef just endlessly setup on it.
https://pokepast.es/caaacba8dc6c0dc4 - Trick Room
Even with Trick Room restricted, I wanted to make one work. Musharna was chosen only because of Psychic Terrain, if you find that not necessary then Cresselia can be chosen. However I don't know what I want to link with Cresselia since its attacking stats are abysmal. I guess you can run Trick + Lunar Dance to disrupt your opponent or a screen. Since Normal is like nonexistent, I go for double Ghost STAB on Wak, it also handles some itemless mons better. Aromatisse only has 3 moves to force Ditto and Mew to either set TR for you or KO itself. Torkoal works surprisingly well given the lack of bulky mons that handle it, it can KO Pult with Rock up.
https://pokepast.es/aefaf57475544aa2 - Semiroom
Semiroom is really only a thing in Doubles, I was intrigued if the concept can actually work here. This team looks kinda weird, but it does the job well. Melmetal under TR is scary, and even outside of it it's still bulky enough to eat a lot of hits. Each individual mon otherwise looks quite standard, but the weird structure makes it enjoying to pilot, at least for me.