Pokémon Sword & Shield TMs & TRs
Technical Machines (TMs) make a return in Pokémon Sword & Pokémon Shield, alongside a new system called Technical Records (TRs). TMs are multi-use as they have been since Pokémon Black/White, however TRs are single use.
Some TMs and TRs can be found in the wild, but they can also be bought. TMs cost money, while TRs cost Watts, a new currency which is received after Max Raid Battles. In this sense Technical Records can be seen as similar to Move Tutors.