I live minutes away from my mum but, while I work during the week, the nature of the job is unpredictable and reactive, and sometimes I can be required to work 70+ hours a week. I barely see anyone during the week, even my own DP. With my mum, Covid has created a situation where we haven't been allowed to see each other as frequently (she was in a bubble with my DB and family) but has required me to do more at work, so perfect storm really. Therefore I can see her twice or even three times a week in less busy periods, but sometimes not for 2-3 weeks if at a particularly busy time. She does make some passive aggressive or guilt trip-like comments about this from time to time, but since DP and I don't have kids, understandably we sometimes want to spend our weekends decompressing by going away, seeing friends, spending quality time together etc, especially when work is particularly hard. Rationally, I suspect I am not being unreasonable, as I don't love her any less, but I do still feel guilty.
One thing, though, is that DP wouldn't think to tell me what is too "much" or too "little". In addition, his family live around an hour away and he tries to go one night a week. However, unlike my mum who is a young mum, they are older and so increasingly dependent on him and his brother, so the frequency works.
The answers here are interesting but as a PP said, everyone's situation is different and there is no right or wrong answer.