The end portal frame item on bedrock edition is simply called "end portal" however its called "end_portal_frame" when targeting it with commands etc. The frame item is also called "end portal frame" on java edition.
Just a small naming error(:
MCPE-76821
End Portal Frames Have The Incorrect Name
Resolved
Fixed
75
(Unassigned)
355180
Confirmed
Multiple
windows 10
vanilla-parity
1.17.10.21 Beta, 1.17.10.20 Beta, 1.16.220.50 Beta, 1.16.200.55 Beta, 1.16.100.58 Beta, , 1.16.20, 1.16.40 Hotfix (All other platforms), 1.16.201 Hotfix, 1.16.221 Hotfix, 1.18.2 Hotfix
1.19.20.20 Preview, 1.19.20
Retrieved
issue present in 1.16.0.61