I have no apps crashing here – but then I've stopped using PlayStore years ago, and instead take my apps from
F-Droid. Going as Google-free as possible, for me also meant avoiding apps relying on such proprietary components (if you ask what for I need microG then: mainly location services; Google registration, FCM etc. I always leave turned off). That meant replacing some apps by others; not being a heavy app user this was not too hard. Side effect: all those other trackers are gone as well, so less resources wasted: less data usage, less battery usage, longer run times with one charge – I'm satisfied with the outcome and don't miss a thing.
What might help you finding app replacements? There are several sites even offering comparisons/recommendations (which app to replace with which other, e.g. instead of Google Maps take OsmAnd or Organic Maps). Another helpful resource might be my
app lists, which clearly show which apps have Google dependencies, how many trackers (and which especially offending ones) are inside, and more.
Apart from that, it might help if you'd name the apps causing trouble for you. Someone might have experienced the same and know specific advice how to get them stable. You might also wish to check with
Plexus who maintain a compatibility list.