i just left a job that loved spreadsheets of all kinds, and i hated them, but it was mostly because they duplicated information held elsewhere, and were used as the system of record for production configuration - with umpteen rows and sheets, and required prolonged and tedious and ongoing manual updates from me, and of course nobody kept them up to date - and i felt like such a back-asswards company deserved a much worse employee than me (if that's possible).
so i get the hate.
but can't say i like jira or any of the others.
i think some business analyst-types - your scrum master - just come from the spreadsheet world so that's where they're comfortable. probably they've never used a bug tracking tool. maybe find a youtube demo and point them to it.
some PMs will copy all the issues out of jira every day or every other day or every week, manually update everything, update things as the meeting progresses, etc. that's just how they roll.
if it's not actually painful for you, i'd say just roll with it.
if it actually requires significant pain, then just talk to them about it. see what the other PMs are using. ask your PM why they are using The Sheets and not specific-use software.
maybe there's a middle ground -- you could use some other monstrosity like notion or smartsheet or airtable.
;-D
just kidding. excel/sheets is not a monstrosity - it's legit useful for some things.