This case was teste on the phone Xiaomi Redmi Note 7, it may be compatible (because its size) with the Xiaomi Redmi Note 7 Pro (model M1901F7S). Some of the models are designed for rigid materials and others for flexible ones. The models materials are not interchangeable, so pay attention to the file names. If you have any request on the design just ask me.
The panda model was asked by the user popo hifi, remixed from MIK BAR Baby panda silhouette. This is part of an update for the 2020 Valentine's Day, in which I add for most of my phone cases a "heart" version; a model with a hole in the back side with the shape of a heart.
2021 is the year when most of country started the covid-19 vaccination; that's why I added a design with the 2021 with the "0" as a virus silhouette and the "1" as a syringe.
For other phone cases check this.
Here is the explanation of the files names:

Flex: made for elastic filaments like TPU. Tested on TPU.
Rigid: made for rigid (non-elastic) filaments like PLA, ABS, HIPS, etc. The entire model is a little bigger and the holes for the buttons are opened on the front side. Tested only on PLA.
Aired: It is widely opened in the back so that the phone can dissipate the heat easily.
Banded: It has regular horizontal grooves in the bed surface, to make the finished texture more regular, avoiding irregularities on that part, and with a better grip.

I spend part of my time making these models, letting them available and free for everyone. If you want to support my work, you can contribute with me here:

Found 13 3D-models for “Go Flex” across many websites

GoPro Handle With Soft Grip

Pokemon Go Team Decals and Badges

Container

Low Profile Key-tcha (Go-tcha Keychain for Pokemon GO)

Spare Carrera Go Pinion Gear

Spinning Pokemon Logo Remix

Xiaomi Redmi Note 7 & 7 Pro m1901f7 case

Insta 360 Go Android Magnetic Case

Pokemon Flexible Gyarados / 寶可夢-可動爆鯉龍

Pokemon Pikachu Flexi Model

4copters Insta360 GO Mount

Flexi Articulated Sylveon

Go Flex to DVD Rom Spacer