I spotted several floaters along the river in the Aanthirin Region (the cliff has probably been redone, but some rocks/vegetation remained to their previous positions).

The approximate locations are:

Report time: 2022.12.23 19:58:29 UTC
Content file: 19 [TR_Mainland.esm]
RefNum: 522764
RefID: t_mw_flora_shroomtableo_01
Memory address: 0x557a82642550
Cell: Aanthirin Region
Grid: 10 -20
Coordinates: 86935.3 -159451 1599.84
Model: meshes\TR\f\TR_Flora_ShroomTabO_01.nif
(BSA: /media/STEAM/GOG/mods_install/0003a_tamriel_data_hd_v9_0_1/tr_data.bsa)

then

Report time: 2022.12.23 20:01:55 UTC
Content file: 19 [TR_Mainland.esm]
RefNum: 526092
RefID: flora_bush_01
Memory address: 0x557a85905770
Cell: Aanthirin Region
Grid: 11 -20
Coordinates: 90479.4 -158391 1482.32
Model: meshes\f\Flora_bush_01.NIF

Many rocks there:

Report time: 2022.12.23 20:05:48 UTC
Content file: 19 [TR_Mainland.esm]
RefNum: 526036
RefID: terrain_rocks_ai_01
Memory address: 0x557a858fb360
Cell: Aanthirin Region
Grid: 11 -20
Coordinates: 91454.3 -159041 1466.34
Model: meshes\f\Terrain_rocks_AI_01.nif

Next spot:

Report time: 2022.12.23 20:06:46 UTC
Content file: 19 [TR_Mainland.esm]
RefNum: 526120
RefID: flora_comberry_01
Memory address: 0x557a8590a900
Cell: Aanthirin Region
Grid: 11 -20
Coordinates: 93433 -160901 1334.76
Model: meshes\f\Flora_comberry_01.NIF

I might have missed some floaters around this area, especially for the minor cases.