This. This with the fierceness.
If you feel like you're on the tail end of SS, are getting bored of SS, are finding squats 3x a week to be too much, or want to incorporate some conditioning smartly into your training you can switch to GSLP (some mighty find templates can be seen here).
5/3/1 is great but, despite there being a template for beginners, there are more efficient ways to make aesthetic and strength gains on a novice program rather than jumping up to something that only has monthly increases.
I agree. Advanced Novice SS (Squats on Monday and Friday; light day on Wednesday) or GSLP should be much better at this point.
You can still milk a lot from your linear progression.