1. Yes
2. Also Yes
3. Yes, But onlt some of them. Planning to make a desktop for Windows Mauve

Yes

Probably

Eschathor is a lineup of Oeprating Systems by Nexoris Tech (Esperanto: Nekorioj Teknologioj), which it's first version is in 10^24 Anno Domni (albeit. 1000000000000000000000000).

A 10000-Year Windows Name

1. Yes
2. A lineup of OSes by dotHolo Corp, which was established inn August of 9999. They made the Orbition Series

1. Includes Euler (Class 4 and 5, Up-Arrow, Linear, Quadratic, Polynomial, Exponential and Uncomputable) and Minderian Chronology with the compact ethereal branch
2. Unfortunately, I lost track

1. Yes, In Euler
2. I lost track
3. I'll not anwser these questiobs

I used to

Yes, Includes Euler and Timesphere

1. Yes, technically game consoles have OSes

1a. Windows Codename Seasons is an OS that it's based off the Frutiger Metro Designs, and changes bootscreen in every season, which is embedded in the "screenres" file (Released Date: 2013)
1b. SerenOS is my self-insert OS made since 2016 by Semaphore Corporation. It serves as a succesor to Yulduz OS and Spiritus after when Yoshlar Computing declared bankruptcy
2. 78

1. I had to do Windows Codename Seasons and SerenOS next. I'll be editing the video on Premiere Pro

If you are talking about my OSM#1:
6. Khaghalt Gemini, Vectorize Mojave, Spiritus 2010, Windows Codename Seasons, Windows Farenheit
7. Windows Culminate, Project: Tetherline, Khaghalt Offshore
8. Windows 2100, Khaghalt Cascadence, VanadiumSYS X, Greenial
10. Khaghalt Milleniaris, Windows Subic Bay, Windows Tethys, Windows Saturn, Vectorize Cobalt, Gamma 4

1. An OS Made by LG, originated from Hyperion's Gate
2. An OS Made by Samsung
3. No
4. Maybe, I can in the future, something similar to Z-Type
5. An OS made by MinderiaYT for their WHwNRVs, canonically started in 1872. My version will make PowerOS Start in 1958.