Is a women-focused gut health stack actually worth it?

34F here, fairly active, decent diet, but my digestion and energy have been a mess the last couple years. Bloating, random constipation, then the opposite, plus I keep getting mild UTIs around my period. Blood work is “fine” according to my doctor, so I’m trying to fine-tune things myself. Right now I’m on a basic multivitamin, magnesium glycinate at night, and a generic probiotic that I’m not super convinced is doing much. I’ve been looking at combos that mix a multivitamin with prebiotic fiber and something for urinary tract support in one system. One I saw markets itself as a [gut health supplement for women](https://regulargirl.com/) with organic fiber and “clinically studied” strains, and the reviews (especially from dietitians) are weirdly glowing. For folks here who’ve focused on digestion: did adding a dedicated fiber + probiotic combo actually change anything for you, or was it just expensive poop? Any ingredients/strains you’d specifically seek out or avoid? And has anyone noticed fewer UTIs after tweaking their vitamin/fiber/probiotic setup?