More thoughts on the document with a read through
Sorcerer
-I definitely like that they get more spells known
-A bunch of the class features are now tied up in special class exclusive spells.
-There's more ways of regaining sorcery points, which are good
-Bringing some of the metamagic abilities from Tasha's to the core PHB is a good decision
-Arcane Eruption might seem meh, but than I realized if you roll even a single 1 you can make all failed saves incapacitated.
-Having the Wish spell with some versatility applied to it fits into my idea of a Sorcerer shaping raw magic.
-Dragon Sorcerers get a better AC bonus now, I think there should be more things that get 10+cha mod+dex mod AC
-Draconic Exhalation makes using Sorcerous Burst a good option for a cantrip if taking this subclass. Definitely more chances to roll 6's which is the key for that cantrip.
Warlock
-The changes are more about the Invocations and the spell casting
-I like that there's options to pick a spellcasting mod, but it's tied to pact type which might cause some characters to be in need of a re-stat.
-I'm fine with Warlocks being half casters, they sort of were before
-Contact Patron is a very suitable ability for a Warlock
-Hex Master, it at least cements Hex as the Warlocks signature spell
-Mystic Arcanum as an invocation, I guess not every Warlock player thought too much about even if they could get 9th level spells
-I like that all of the "you cast x spell once" have gone away. I didn't like most of those choices
-Medium Armor training is certainly a much needed addition
-Hurl Through Hell uses the improvement of allowing you to spend a spell slot to use, which other more recent Warlock subclasses have gained. But it now has a saving throw to resist, and I feel the save should be a Charisma save, saves against banishment should be Charisma.
Wizard
-Wizard's spellbook is given more attention and can be used as a focus, though there's special attention in that scribing a spell is now a Wizard spell instead
-Academic really suits the Wizard, they should be good at doing research
-Being able to change some spells prepared or modifying existing spells ahead of time, adds a bunch to the Wizard.
-Overall it's the Wizard feels the same, not much changes and never needed too many changes