Going by the wiki link further down the tree:
1980's: 4 shutdowns totaling 2 days
1990's: 3 shutdowns totaling 29 days (21 of those days was when Gingrich as Speaker)
2000's: 0 (9/11 and GWoT unity?)
2010's: 3 shutdowns totaling 54 days
2020's: This one
I guess I would agree they were common but they also weren't severe until Gingrich-ism took over the GOP: putting polarization and partisanship into overdrive.