Trae is cool, they have Kimi and she’s a beast at coding. Without a doubt my fav model - Trae actually was my preferred IDE when they were on a Request based structure. They recently changed it when Gemini3.1 dropped (which ironically is around the timeframe of the lockout errors). Now Trae uses a token/credit billing structure.
My power workflow - Gemini via the website or sidebar is first. I do my planning, mockups, notes, everything starting out with the scaffolding is there. Then, i send it in to Google Jules (I had errors there uploading but it works with Drive links and GitHub). I let Jules be my main compiler. Then, I send it over to Trae to handle the fast stuff, the minor edits. Antigravity is my last stop shop, where i do the final checks, the error resolutions. When I hit testing - thats when i get CoPilot and have them check things out, they are a great evaluator.
Since so many aren’t transparent about “usage”, the only way i know of to manage any semblance of transparency - is using multiple different platforms and chaining the workflow like that.
Chickens and baskets. 
Also : since you mentioned you do a multiple account structure using pro - and i don’t want to sound insensitive but, have you tried like, 5 separate computers? If the earlier account isolation worked but jammed up when you tried to change account - idk maybe that could be the solution? Like, set up a few old laptops, plug your project into a drive and put that on your router/modem or just move the drive from one computer to the next? That would likely preserve your account isolation without a cookie crumb jamming up the works 
[dropping link to thread : i’ve been pushing as much support as i can on this issue but until google actually makes a public statement - or until mods just sticky my dang guide, i’m having to link it everywhere possible]