This is the generation with the fewest new moves ever with less than fifty at the time before the DLC. This is vert weird, and I do think it's weird it was mostly signature moves.
I found the list of all the new moves in generation IX (only 48 btw) and some of these we can't even
use.
Like this one. Yeah, definitely need to stop with that. We need more moves other Pokemon can use. How many of the new moves this generation aren't Signature moves anyway?
Only just started this generation. Breaks down Generation 8:
Sword/Shield base game: 77 new moves
- 31 signature moves (Apple Acid, Aura Wheel, Behemoth Bash, Behemoth Blade, Bolt Beak, Branch Poke, Clangerous Soul, Court Change, Decorate, Dragon Darts, Drum Beating, Dynamax Cannon, Eternabeam, False Surrender, Fishious Rend, Grav Apple, Jaw Lock, Magic Powder, Meteor Assault, No Retreat, Obstruct, Octolock, Overdrive, Pyro Ball, Snap Trap, Snipe Shot, Spirit Break, Strange Steam, Stuff Cheeks, Tar Shot, Teatime)
- 3 not signature moves (Body Press, Breaking Swipe, Life Dew)
- 24 G-Max moves
- 19 Max moves
Sword/Shield DLC: 37 new moves
- 11 signature moves (Astral Barrage, Dragon Energy, Eerie Spell, Fiery Wrath, Freezing Glare, Glacial Lance, Shell Side Arm, Surging Strikes, Thunder Cage, Thunderous Kick, Wicked Blow)
- 19 non-signature move tutor moves (Burning Jealousy, Coaching, Corrosive Gas, Dual Wingbeat, Expanding Force, Flip Turn, Grassy Glide, Lash Out, Meteor Beam, Misty Explosion, Poltergeist, Rising Voltage, Scale Shot, Scorching Sands, Skitter Smack, Steel Beam, Steel Roller, Terrain Pulse, Triple Axel)
- 7 G-Max moves
Legends: Arceus: 24 new moves
- 21 signature moves: Barb Barrage, Bitter Malice, Bleakwind Storm, Ceaseless Edge, Chloroblast, Dire Claw, Esper Wing, Infernal Parade, Lunar Blessing, Mountain Gale, Mystical Power, Psyshield Bash, Raging Fury, Sandsear Storm, Shelter, Springtide Storm, Stone Axe, Take Heart, Triple Arrows, Victory Dance, Wildbolt Storm
- 3 not signature moves: Headlong Rush (kind of), Power Shift, Wave Crash
???: 2 new signature moves: G-Max Meltdown (Melmetal), Jungle Healing (Zarude)
(Hopefully counted all those correctly.)
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For non-signature moves in Generation 9: 9 moves (Aqua Cutter, Axe Kick, Chilling Water, Comeuppance, Ice Spinner, Pounce, Snowscape, Tera Blast, and Trailblaze)
Finds it hard to classify Generation 7. Example: Started with Dragon Hammer as exclusive to Alolan Exeggutor. Handed it to Tropius in Ultra Sun/Moon. Same with First Impression, Strength Sap, and Power Trip. Similarly, how do you handle Gear Up with Klinklang and Magearna?
Sees 15 Generation 7 non-signatures (probably?): Aurora Veil, Brutal Swing, Burn Up, High Horsepower, Laser Focus, Leafage, Liquidation, Lunge, Psychic Terrain, Smart Strike, Speed Swap, Stomping Tantrum, Spotlight, Tearful Look, and Throat Chop. Restricted several of these to, like, three Pokemon. Turned some signature moves into general moves later (like Pollen Puff). Welcomes someone to double-check these. Rushed it. (Would like to go to bed soon.) Could have written one as non-signature due to becoming one in later generations.
Edit: Added Laser Focus and Leafage to Generation 7. Hit the filter with that second move, apparently.