I am Ashlynn now you can find many made from natural rubber latex so it is already more environmental friendly. Some are B corps as well. Still they are not so easy biodegradable because of some other components so it is better just to recycle.
Anyway toilets are happy just to take 💩 , 💧 and toilet paper!
In some point they are already planet friendly by stopping STD and population growth 😜
The bottom point you have more eco friendly options, but you need to look for it.