after searching for months, i finally stumbled on the attached. I purchased it and it works exactly as expected. Unfortunately, if i try to 'buy it again' i get a page not found on amazon. Hopefully the image/specs will help you with your hunt. I use the cable with my
envoy express and with the right angle i can close my computer, pop it in my bag and not have to worry about bending the connector or needing to eject the drive before packing up.
My setup which sounds similar to yours, I recently completed my perfect configuration so i'll share what it entails below:
To ease the configuration of using multi-port hubs, egpu & power all with one single cable i bought this:
https://eshop.macsales.com/shop/owc-thunderbolt-hub. It allows you to plug in all the devices that normally would need to be plugged directly into your mac into the a small thunderbolt hub. It's a game changer.
Additionally, thunderbolt 4 cables are backwards compatible with thunderbolt 3 devices & can be up to 6 feet in length... this helps with configuring a setup in a small space as you have way more cable to work with & no loss of compatibility to devices.
My current configuration is the owc thunderbolt hub, connected to my macbook pro with a 6 foot thunderbolt 4 cable and then my eGPU, multi port hub (for usb-a, ethernet, audio, etc), & external hard drive are plugged into the owc hub. They are all comfortably tucked away out of sight and all i do is plug in a single cable and everything comes to life. i have finally reached desktop nirvana with my macbook pro.
good luck