Yes, Adobe fixed their issues in Indesign and InCopy already using the following: https://helpx.adobe.com/indesign/kb/crash-on-launch-macOS-mojave-beta.html.
When Mojave launches next month to the public I presume Adobe will be releasing 2019 version of all their products for full Mojave compatibility.
The brightness issue is horrible. Most betas have lots of issues and love getting to provide feedback to companies on the issues and test out new features, but this is the first time when so many core issues are broken. I've been using the beta including beta 4 on other devices without any significant problems so upgraded the 2018 MBP and it seems the T2 chip is having significant issues where as noted 0 control over native brightness, the screen flashes white occaisonally (like when taking a photo in photobooth), no siri, when battery dies screen goes black and when you plug in the power the computer goes back on but screen stays black ( you have to toggle plugging in unplugging open closing screen and other dancing around to get it to come back on, sms text message forwarding doesnt seem to be working, among other items that are controlled by t2. And so far no update for the thermal issue for non high sierra customers.
I've been contemplating downgrading to high sierra, how tomorrow is friday and and then after the weekend only have to way 2 days until beta 5 on Tuesday which hopefully will fix the t2 and those related issues. If it doesn't I and I imagine most will be downgrading back since certainly couldnt deal with full brightness for another 2 weeks.