@bort If you keep doing partial/non full ROM squats, not only are you not standardizing your form, you're also pampering your body into heavier loads with lower mobility and may eventually lead to structural problems, such as imbalanced hips and stability muscles
If hypertrophy is your ONLY goal probably irrelevant. If functionality, longevity AND hypertrophy is your goal I would incorporate some of the following in addition to lightening your squat loads until you can get comfortable ATG:
1) Ipsi/Contra lateral loaded Bulgarian split squats with other hand lightly holding onto something for stability. The contra version will most definitely expose your hip and oblique weakness.
2) ATG body weight squats as a to failure set for the BSS above.
3) Single leg hip thrusts, try no weight first they are challenging
4) Tibia raises with back against wall: flex the feet hard upwards and it's likely you will notice one has better flexibility and mind muscle connection than the other. The one that is weaker is a side you need to work on: somewhere along your hip flexor, hamstring or glute is likely weak and you need to work on with unilateral work.