"Beginning at 6th level, when you cast any of the spells gained from your Psionic Spells feature, you can cast it by expending a spell slot as normal or by spending a number of sorcery points equal to the spell’s level. If you cast the spell using sorcery points, it requires no components".
Revealed in Tasha, sorcerers (Aberrant Mind and Cloakwork Soul) now have more spells known than wizards prepared spell.
Just like Shadow Sorcerer's The hound of Ill Omem is a Heightein on steroids. Aberrant Mind's Psionic Sorcery is a Subtle Spell with steroids.
Psionic Sorcery + Suggestion is simply undetectable, cannot be counterspellated and it is still possible to add a metamagic effect to it, such as Heightein Spell.
Detect Through is also too useful.
Psionic Sorcery + Suggestion is literally "Fight by my side for 8 hours or 16h (Extended Spell) or 2 creatures (Twin spell)" or any command. In addition to being extremely powerful in magical combat where there is no counterspell and still applies disadvantage on saving throw