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