Suggestion For Sneak Attack
Don't make it a skill I have to chose to use, make it a toggled ability similar to Great Weapon Master.
Further more, there should be a tool tip either at the cursor, or at the Chance to Hit box, that indicates if the attack will trigger sneak attack.
I don't think Sneak attack should be a toggle. A toggle is something you need to manage. There is no reason to add something which should be automatic into something you need to manage.
Additionally, if the Rogue is hidden at the start of their turn, and they can reach a target with their movement in that turn, they should get Sneak Attack even if their Stealth check fails along the way, which is the rules.
Not an Expert?
Another thing that seems to be missing from BG3 is expertise? Rogues are known as "skill monkeys" for a reason, and the loss of expertise is another thing that makes the Rogue feel more shallow.
Agreed, bring this back. It's vital. It's Reliable Talent, not Expertise which is borderline broken.
I'll put in my own thoughts.
Give Rogues back their CLASS FEATURE of Thieves Tools proficiencyIt's hard to tell what's going on with TT prof., but the tooltips suggest that it has been moved to Sleight of Hand. This is an unacceptable change, and I will explain why:
Rogues still get four skills to be proficient in, and they do not automatically get Sleight of Hand. This means that it's quite possible to build a Rogue with no proficiency in thieves tools, despite this being one of their most important CLASS FEATURES.
Giving them Sleight of Hand as an automatic proficiency isn't the answer, as a Rogue who DID intend on taking SoH now has an extra skill to take. This is not a complicated problem, and this is not a thing which needed to be changed. Make TT it's own separate thing which Rogues and certain Backgrounds get for free. This is what the rules say, and they work fine.
Rogues SUCK at jumping and fallingJump distance is based on the Strength Modifier. Athletics is not considered, so Rogues have less reason to take proficiency in that skill. Acrobatics has no use in the game, as it does not help for jumping, nor do you make Acrobatics checks to reduce falling damage or avoid falling prone.
If you need someone to explore across decent-sized gaps, the only one who can do it is the guy in heavy armor. Better hope there's no need for Investigation or unlocking/disarming over there.