Thanks for answering.
*I know about the requirements and I use effects on every video I make. Just want to know if there is a way to not lose quality while still using effects.
*I got what the issue with saving the file was. The problem was in the length of the file's path. The path to the file was so long it had to shorten file's name and give a warning about that. But the thing is, it wasn't happening when i was using v13.80. I don't know what changed
I can't change my files' path and every minor change I make leads to a warning which is pretty annoying.
I just noticed this. Whenever I open a file, it's name gets shortened in the upper menu straight away. So this is definitely a long path and name problem. It doesn't let the path's name have more than 85 symbols. Some of my files' names are by themselves longer, not mentioning the path, so even moving them to a new place wouldn't help.