I can relate, though had some unexpected weight can long after menopause. Not a lot , but for my frame it’s a complete change in fit.
I do think that what’s most important is to work on habits that are good for you no matter what the scale shows.
I’m a fan of resistance training for muscle , whether body weight or weights or combination. I’m surrounded by friends who are falling and breaking bones. Many are regular walkers but don’t do any specific resistance training (for glutes especially ). Sure, if you walk lots of hills or variable terrain you will get more workout for supporting muscles. Or if they are doing free weights, they’re doing lots of reps with very light weights and not taking weights to next levels. I do a lot of gardening but of course it’s seasonal, and yet I found though it was tiring( in a good way) and gave me a lot of moderate activity, but still left out many important muscle groups or movements, so I was kinda fooled as to thinking that was enough . So weights 2-3 x / week is for me.
But after months of pretty consistent workouts I gained weight, and some clothes didn’t fit, some of which was clearly NOT muscle! But I was also clearly stronger. I was frustrated and perplexed and not 100% sure why, but I think it’s because: I intentionally was not being very food- careful because I was very focused on first establishing my exercise routine , being consistent over a long time compared to prior attempts to do so, and not combining it with “ dieting “ that would take too much bandwidth or interfere with muscle gain or risk making me grumpy. Part of this was over winter, so also wasn’t outside as much for regular activity ( waving to lisap ). And think I snacked more than before.
So I’ve had to look at it as overall better, and maybe some opportunity in glorious springtime to choose healthier snacks, add back my gardening.
Also, as in a previous post, I offloaded or put in Hold totes ALL clothes( mostly pants) that I didn’t currently feel fab in, and bought several new pairs that were instantly wearable in my general styles/ colors/outfits so I could grab & go as the weather warms up. No regrets there— it really helped to avoid those bad getting- dressed emotions that can derail you.