Decomp: https://github.com/Rubberduckycooly/Sonic-CD-11-Decompilation
Mods used:
Sonic CD Separated Past Themes - SoN1c2001, US Past Themes by KingMeteorStudios
Higher Quality JP/US Music Mod - Darkskull Dawn Zenith
Restart Special Stages/Time Attack - MegAmi
1996 PC Title Screen - RetroForever
Palmtree Panic as a whole is pretty easy. You can complete the zones pretty quickly, and if going for 100%, you can find the Robot Transporter and Metal Sonic Projector without having to look too hard.
Most of Sonic CD's zones are based off of Sonic 1's. Palmtree Panic is of course based on Green Hill, which becomes more obvious if you play the 0.02 prototype. There, Act 1's layout actually lines up pretty closely with Green Hill Act 1.
At this time, SuperFreaksDev has 531 views for Sonic CD spread across 43 videos. The game makes up 1 hour of published video on his channel, roughly 2.40% of Sonic CD content that SuperFreaksDev has uploaded to YouTube.