For me it's not so much about the technical merits of SPA vs MPA its the annoyance of having all the stuff that used to be backend now part of frontend.

I resisted "learning" typescript for like 5 years or more and I hope it's been validated somewhat.

Being a web dev is hard enough dealing with myriad devices and ever changing trends without consolidating every aspect of web/app into that role because Facebook wanted to cut down on their server costs.

And I don't enjoy using those bloated electron apps either, the difference between native and JS is stark.