Greg Nuckols recently wrote a handy article over at Strengtheory for anyone new to training wanting to understand how quickly they might lose fat or gain muscle, both in the short-term and over a longer training career, with a calculator to target optimal fat loss.
There's also a calculator at the end of the article to attempt to predict potential strength gains in the main lifts. However bear in mind that the results are based on a self-selecting survey of members of the /r/weightroom, /r/powerlifting and r/fitness subreddits. So they are unlikely to be particularly representative nor controlled for basic variables such as technique (eg squat depth etc).
The key point to remember is not to bash yourself if you fail to hit your target(s). We all have different genetic endowments, and some of us (typically known as 'poor responders' in the literature) will struggle to hit even the most modest goals. Meanwhile others will look at a weight and grow.
So don't waste your time comparing yourself with others. But do set some goals, and then try to beat them