Can you show a screenshot?
Can you reproduce in Troubleshooting Mode (Help → "Restart in Troubleshooting Mode…”)?

When I go to "Report Errors...", I get

[JavaScript Error: "NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIProperties.get]" {file: "resource://gre/modules/FileUtils.sys.mjs" line: 55}]
FileUtils_getDir@resource://gre/modules/FileUtils.sys.mjs:55:31
getUpdateBaseDirNoCreate@resource://gre/modules/UpdateServiceStub.sys.mjs:63:20
UpdateServiceStub@resource://gre/modules/UpdateServiceStub.sys.mjs:67:19


While creating services from category 'profile-after-change', could not create service for entry 'nsUpdateServiceStub', contract ID '@mozilla.org/updates/update-service-stub;1'

1739882000273 addons.xpi-utils WARN disabling legacy extension rtf-odf-scan-for-zotero@mystery-lab.com

1739882000273 addons.xpi-utils WARN disabling legacy extension zotfile@columbia.edu

[JavaScript Error: "Style with ID http://www.zotero.org/styles/elsevier-with-titles-std already loaded from elsevier-with-titles-std.csl" {file: "chrome://zotero/content/xpcom/style.js" line: 182}]
Zotero.Styles</_readStylesFromDirectory<@chrome://zotero/content/xpcom/style.js:182:32
tryCatcher@resource://zotero/bluebird/util.js:16:23
module.exports/PromiseSpawn.prototype._promiseFulfilled@resource://zotero/bluebird/generators.js:97:49
module.exports/Promise.prototype._settlePromise@resource://zotero/bluebird/promise.js:609:26
module.exports/Promise.prototype._settlePromise0@resource://zotero/bluebird/promise.js:649:10
module.exports/Promise.prototype._settlePromises@resource://zotero/bluebird/promise.js:729:18
_drainQueueStep@resource://zotero/bluebird/async.js:93:12
_drainQueue@resource://zotero/bluebird/async.js:86:24
Async.prototype._drainQueues@resource://zotero/bluebird/async.js:102:16
Async/this.drainQueues@resource://zotero/bluebird/async.js:15:14


[JavaScript Error: "Error 413 for item V4DMG8HK in My Library:

ZoteroObjectUploadError: Note 'Contents78152_fmFront Matter...' too long for item '7464892/V4DMG8HK'"]

[JavaScript Error: "Note 'Contents78152_fmFront Matter...' too long for item '7464892/V4DMG8HK'" {file: "chrome://zotero/content/xpcom/sync/syncEngine.js" line: 1365}]

[JavaScript Error: "Error 413 for item T68LJ8X7 in My Library:

ZoteroObjectUploadError: Note 'Contents1794_fmFront Matter...' too long for item '7464892/T68LJ8X7'"]

[JavaScript Error: "Note 'Contents1794_fmFront Matter...' too long for item '7464892/T68LJ8X7'" {file: "chrome://zotero/content/xpcom/sync/syncEngine.js" line: 1365}]

[JavaScript Error: "Made no progress during upload -- stopping" {file: "chrome://zotero/content/xpcom/sync/syncEngine.js" line: 1424}]

[JavaScript Error: "Made no progress during upload -- stopping" {file: "chrome://zotero/content/xpcom/sync/syncEngine.js" line: 1424}]

appName => Zotero, version => 7.0.11 (x64), os => Windows 10.0 17763, locale => en-US, extensions => Better BibTex for Zotero (7.0.5, extension), Zoplicate (3.0.7, extension), Zutilo Utility for Zotero (4.0.1, extension), DOI Manager (1.5.0, extension), Better Notes for Zotero (2.2.7, extension), Actions and Tags for Zotero (2.1.0, extension), ODF Scan for Zotero (2.0.48, extension, disabled), ZotFile (5.1.2, extension, disabled), Notero (1.0.0, extension, disabled), MarkDB-Connect (0.1.5, extension, disabled), ZotMoov (1.2.15, extension, disabled)

Actually, I did. The screenshot shows that it is in the troubleshooting mode.
It is there.

The tooltips on the main panel (not in search) showing for partially displayed fields are fine. I wonder how exactly the red popup is rendered.

@PChemist: The errors are probably unrelated.

ZoteroObjectUploadError: Note 'Contents78152_fmFront Matter...' too long for item '7464892/V4DMG8HK'"]

Probably the same as here:
https://forums.zotero.org/discussion/comment/469114/#Comment_469114