It stopped working a few weeks ago 
This sounds like the same thing as an issue I reported a while ago. It seemed to be a webview bug at the time, and updating it or switching webview providers is supposed to fix it, but I’ve just heard that apparently having accessibility settings active can break it. If that is the case, which it seems to be from my personal experience (only my devices get this, while my family who don’t use accessibility are all fine) then I really hope there is a real fix possible besides uninstalling those apps. I need some overlay-producing apps active to use my phone and have barely been able to use obsidian anymore for like a year now because of this issue, even after getting a new phone.
For your case, maybe try updating your webview or installing canary or beta webview? That’s what was recommended for me back then!
This is WebView problem, however it’s not the same issue as the one you had in past.
There is upstream work (by Chromium) to address this issue. Howver the fix hasn’t been distributed yet. So, Upgrading WebView now won’t fix this problem. I will write in this thread when a fix is deployed.
I have an issue and I think it’s related to this but using the img tags
Minimal repro:
<img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/10/2023_Obsidian_logo.svg/250px-2023_Obsidian_logo.svg.png">
Im having same issues.
Long press on a note and I can move it to desired folder. And then the screen freezes. Any help much appreciated as my vault is crucial to my research and using my phone app is very useful for my workflow.
Heres my debug…
SYSTEM INFO:
Obsidian version: 1.12.7 (303)
API version: 1.12.7
Operating system: Android 16 (samsung SM-S711B)
Webview version: 148.0.7778.215
Login status: logged in
Language: en-GB
Catalyst license: none
SYNC INFO:
Vault ID: f35b73888d37bc1f8267802d884990be
Host server: wss://sync-48.obsidian.md
Device name:
Encryption version: 3
Allowed file types: image, audio, pdf, video
Allowed special types: app, appearance, appearance-data, hotkey, core-plugin, core-plugin-data
Ignored directories:
Prevent sleep: false
Sync logs:
1781569118668 Info Connecting to server
1781569119121 Info Connection successful. Detecting changes…
1781569119221 Info Fully synced
+1; Having the same issue
I found a workaround on my Samsung Android: the issue was caused by an enabled Accessibility service from an app called “Auto Clicker”. After disabling Auto Clicker in Android Settings → Accessibility → Installed apps, Obsidian stopped freezing when long-pressing folders/files. So before downgrading WebView, it may be worth checking enabled Accessibility services or overlay apps.
This bug was fixed upstream. Now we have to wait until the fix arrives in your devices as newer version of android webview are distributed automatically.
The versions with the fix are:
149.0.7827.195+
and
150.0.7871.41+