I'm assuming you love both your daughter and your mum or you probably would have distanced yourself from them.
It's good that you've had the chance to get closer to your mum during lockdown.
Are they perfect? No
Was your family life perfect? No
Are any of us without faults? No
Are there patterns of behaviour being repeated, past hurts and unresolved issues? Probably.
Forgiveness is part of love and , difficult though it is, try to forgive your mum and your daughter for what may well be unreasonable behaviour. The only person's reactions and emotions you have direct control over are yours. If you can deal with the hurt, forgive and continue to love them, and give an appropriate amount of time to help them, then anything else needs to come from them. That's not saying there may not be a suitable time to try to discuss some of these issues - but it could be a minefield.
It may even be worthwhile getting phone/face-to-face counselling to help you understand the past and present family dynamics going on and develop strategies to deal with it, which might include how to raise some of the issues directly with them.
Good luck. I hope you manage to restore/maintain a loving, two-way relationship with all concerned for everyone's benefit.