Currently Lizzie has no content available beyond when you meet Charles, and later on in the main quest when you hook Morgan up with her sister. (Which appears to be the first and last time you meet said sister, and Morgan calls dibs immediately). The way you used to get to Lizzie was through the YouTV quest, which Beggar has only implemented pieces of.
Originally, you'd go:
1. Meet Lizzie for the first time, hear about game store. - still in.
2. Do quest at game store to fix computer. - also still in.
3. Get Webcam as present when Jack returns from 1 month business trip. - last part that's still in.
4. Then you'd get a family album, do video diaries, and finally buy games at the store. - None of this stuff is in.
5. Somewhere around there you'd also run into Lizzie again and get her animation. - Files exist, but no way to activate them as the questline stops early.
Because of the way Lucy's quest is developing, the family album angle probably didn't make sense anymore. You can't buy the games or get the album anymore. All of Lizzie's old animations are still in the game files, though. There's also a girl during Laura's job interview in the mall that still reacts if you have YouTV quest markers done. She has nothing to react to, but she's there. You just can't see either animation in the present build. The foundation and mile-markers for YouTV are still there, they just aren't hooked to anything yet. Beggar still seems to be reworking YouTV's quest.
The speculation I ran a page or so back went like this:
I think YouTV is the passive income questline for the first part of the game. He's probably reworking it to run more like a YouTube channel instead of like a Twitch stream, which was how the old quest ran. MrBeast might do 4 hours of video every day, but the average YouTuber does not. It's still referenced everywhere, (especially if you buy the Lamborghini), and Jack even comments on your YouTV channel during the transition to the second half of the game. You've got a gang job app on your phone that seems to be the 2nd half of the game's passive income questline. All you see of that right now is the tutorial mission that kicks off shortly after you start the 2nd half of the game.