I’m a dev and understand how web apps can be attractive to us, but as a user they irritate me. During my formative years, software by and large served the user over the dev, so flipping the scales entirely in my favor as a dev feels almost wrong.
The other issue is that web browsers are dynamic environments (much more so than operating systems) and sometimes break/change things. Users who’ve frozen PWA updates don’t have any access to critical fixes. A lot of devs just wouldn’t support frozen versions.