My Mid 2014, 15" Macbook Pro has both Intel and Nvidia.
Chipset Model: Intel Iris Pro
Chipset Model: NVIDIA GeForce GT 750M
This Macbook pro was a free upgrade from Apple after I'd had 3 mainboard replacements because they'd had faulty GPU's on my 2011 MBP ( see https://web.archive.org/web/20170119031155/https://people.ca... for background) - Basically after I found out what was going on I took my 'repaired' machine home and stress tested it until it failed. After the very quick repeated failures Apple decided to replace my machine completely.
It's harder because mastodon (it's not even mastodon, it's the fediverse) users wont all be on the same instance and whichever instance you are on might not know of the one they are on. In order for you to appear in a search, someone, somewhere needs to have made 'contact' with you or someone on the same instance.
'contact' because boost / like is included, not just replies.